diff --git a/ale_linters/typescript/tslint.vim b/ale_linters/typescript/tslint.vim
index 4db5094f..26d26c8c 100644
--- a/ale_linters/typescript/tslint.vim
+++ b/ale_linters/typescript/tslint.vim
@@ -12,27 +12,27 @@ function! ale_linters#typescript#tslint#GetExecutable(buffer) abort
 endfunction
 
 function! ale_linters#typescript#tslint#Handle(buffer, lines) abort
+    let l:dir = expand('#' . a:buffer . ':p:h')
     let l:output = []
 
     for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
-        if ale#path#IsBufferPath(a:buffer, l:error.name)
-            call add(l:output, {
-            \   'type': (get(l:error, 'ruleSeverity', '') is# 'WARNING' ? 'W' : 'E'),
-            \   'text': has_key(l:error, 'ruleName')
-            \       ? l:error.ruleName . ': ' . l:error.failure
-            \       : l:error.failure,
-            \   'lnum': l:error.startPosition.line + 1,
-            \   'col': l:error.startPosition.character + 1,
-            \   'end_lnum': l:error.endPosition.line + 1,
-            \   'end_col': l:error.endPosition.character + 1,
-            \})
-        endif
+        call add(l:output, {
+        \   'filename': ale#path#GetAbsPath(l:dir, l:error.name),
+        \   'type': (get(l:error, 'ruleSeverity', '') is# 'WARNING' ? 'W' : 'E'),
+        \   'text': has_key(l:error, 'ruleName')
+        \       ? l:error.ruleName . ': ' . l:error.failure
+        \       : l:error.failure,
+        \   'lnum': l:error.startPosition.line + 1,
+        \   'col': l:error.startPosition.character + 1,
+        \   'end_lnum': l:error.endPosition.line + 1,
+        \   'end_col': l:error.endPosition.character + 1,
+        \})
     endfor
 
     return l:output
 endfunction
 
-function! ale_linters#typescript#tslint#BuildLintCommand(buffer) abort
+function! ale_linters#typescript#tslint#GetCommand(buffer) abort
     let l:tslint_config_path = ale#path#ResolveLocalPath(
     \   a:buffer,
     \   'tslint.json',
@@ -43,7 +43,8 @@ function! ale_linters#typescript#tslint#BuildLintCommand(buffer) abort
     \   ? ' -c ' . ale#Escape(l:tslint_config_path)
     \   : ''
 
-    return ale_linters#typescript#tslint#GetExecutable(a:buffer)
+    return ale#path#BufferCdString(a:buffer)
+    \   . ale_linters#typescript#tslint#GetExecutable(a:buffer)
     \   . ' --format json'
     \   . l:tslint_config_option
     \   . ' %t'
@@ -52,6 +53,6 @@ endfunction
 call ale#linter#Define('typescript', {
 \   'name': 'tslint',
 \   'executable_callback': 'ale_linters#typescript#tslint#GetExecutable',
-\   'command_callback': 'ale_linters#typescript#tslint#BuildLintCommand',
+\   'command_callback': 'ale_linters#typescript#tslint#GetCommand',
 \   'callback': 'ale_linters#typescript#tslint#Handle',
 \})
diff --git a/autoload/ale/engine.vim b/autoload/ale/engine.vim
index 6a168958..40930038 100644
--- a/autoload/ale/engine.vim
+++ b/autoload/ale/engine.vim
@@ -362,6 +362,7 @@ function! ale#engine#FixLocList(buffer, linter_name, loclist) abort
         " The linter_name will be set on the errors so it can be used in
         " output, filtering, etc..
         let l:item = {
+        \   'bufnr': a:buffer,
         \   'text': l:old_item.text,
         \   'lnum': str2nr(l:old_item.lnum),
         \   'col': str2nr(get(l:old_item, 'col', 0)),
@@ -372,7 +373,11 @@ function! ale#engine#FixLocList(buffer, linter_name, loclist) abort
         \}
 
         if has_key(l:old_item, 'filename')
+        \&& l:old_item.filename[:len(s:temp_dir) - 1] isnot# s:temp_dir
             " Use the filename given.
+            " Temporary files are assumed to be for this buffer,
+            " and the filename is not included then, because it looks bad
+            " in the loclist window.
             let l:filename = l:old_item.filename
             let l:item.filename = l:filename
 
@@ -384,10 +389,6 @@ function! ale#engine#FixLocList(buffer, linter_name, loclist) abort
             elseif has_key(l:bufnr_map, l:filename)
                 " Get the buffer number from the map, which can be faster.
                 let l:item.bufnr = l:bufnr_map[l:filename]
-            elseif l:filename[:len(s:temp_dir) - 1] is# s:temp_dir
-                " Assume that any temporary files are for this buffer.
-                let l:item.bufnr = a:buffer
-                let l:bufnr_map[l:filename] = a:buffer
             else
                 " Look up the buffer number.
                 let l:item.bufnr = bufnr(l:filename)
@@ -395,8 +396,6 @@ function! ale#engine#FixLocList(buffer, linter_name, loclist) abort
             endif
         elseif has_key(l:old_item, 'bufnr')
             let l:item.bufnr = l:old_item.bufnr
-        else
-            let l:item.bufnr = a:buffer
         endif
 
         if has_key(l:old_item, 'detail')
diff --git a/autoload/ale/path.vim b/autoload/ale/path.vim
index 49069478..bc026cc2 100644
--- a/autoload/ale/path.vim
+++ b/autoload/ale/path.vim
@@ -86,6 +86,19 @@ function! ale#path#IsTempName(filename) abort
     return 0
 endfunction
 
+" Given a base directory, which must not have a trailing slash, and a
+" filename, which may have an absolute path a path relative to the base
+" directory, return the absolute path to the file.
+function! ale#path#GetAbsPath(base_directory, filename) abort
+    if ale#path#IsAbsolute(a:filename)
+        return a:filename
+    endif
+
+    let l:sep = has('win32') ? '\' : '/'
+
+    return ale#path#Simplify(a:base_directory . l:sep . a:filename)
+endfunction
+
 " Given a buffer number and a relative or absolute path, return 1 if the
 " two paths represent the same file on disk.
 function! ale#path#IsBufferPath(buffer, complex_filename) abort
diff --git a/test/command_callback/test_tslint_command_callback.vader b/test/command_callback/test_tslint_command_callback.vader
new file mode 100644
index 00000000..694d36d6
--- /dev/null
+++ b/test/command_callback/test_tslint_command_callback.vader
@@ -0,0 +1,24 @@
+Before:
+  Save g:typescript_tslint_executable
+  Save g:typescript_tslint_config_path
+  Save g:typescript_tslint_use_global
+
+  unlet! g:typescript_tslint_executable
+  unlet! g:typescript_tslint_config_path
+  unlet! g:typescript_tslint_use_global
+
+  runtime ale_linters/typescript/tslint.vim
+
+  call ale#test#SetDirectory('/testplugin/test/command_callback')
+
+After:
+  Restore
+
+  call ale#test#RestoreDirectory()
+  call ale#linter#Reset()
+
+Execute(The default tslint command should be correct):
+  AssertEqual
+  \ 'cd ''' . expand('%:p:h') . ''' && '
+  \   . 'tslint --format json %t',
+  \ ale_linters#typescript#tslint#GetCommand(bufnr(''))
diff --git a/test/handler/test_tslint_handler.vader b/test/handler/test_tslint_handler.vader
index a27657eb..5c8679a4 100644
--- a/test/handler/test_tslint_handler.vader
+++ b/test/handler/test_tslint_handler.vader
@@ -15,28 +15,40 @@ Execute(The tslint handler should parse lines correctly):
   \   {
   \     'lnum': 1,
   \     'col': 15,
+  \     'filename': expand('%:p:h') . '/test.ts',
   \     'end_lnum': 1,
-  \     'end_col': 15,
-  \     'text': 'semicolon: Missing semicolon',
   \     'type': 'E',
+  \     'end_col': 15,
+  \     'text': 'semicolon: Missing semicolon'
   \   },
   \   {
   \     'lnum': 2,
   \     'col': 8,
+  \     'filename': expand('%:p:h') . '/test.ts',
   \     'end_lnum': 3,
-  \     'end_col': 12,
-  \     'text': 'Something else',
   \     'type': 'W',
+  \     'end_col': 12,
+  \     'text': 'Something else'
+  \   },
+  \   {
+  \     'lnum': 2,
+  \     'col': 8,
+  \     'filename': expand('%:p:h') . '/something-else.ts',
+  \     'end_lnum': 3,
+  \     'type': 'W',
+  \     'end_col': 12,
+  \     'text': 'something: Something else'
   \   },
   \   {
   \     'lnum': 31,
   \     'col': 9,
+  \     'filename': expand('%:p:h') . '/test.ts',
   \     'end_lnum': 31,
-  \     'end_col': 20,
-  \     'text': 'no-console: Calls to console.log are not allowed.',
   \     'type': 'E',
+  \     'end_col': 20,
+  \     'text': 'no-console: Calls to console.log are not allowed.'
   \   },
-  \ ],
+  \ ] ,
   \ ale_linters#typescript#tslint#Handle(bufnr(''), [json_encode([
   \   {
   \     'endPosition': {
@@ -50,7 +62,7 @@ Execute(The tslint handler should parse lines correctly):
   \       'innerStart': 14,
   \       'innerText': ';'
   \     },
-  \     'name': 'app/test.ts',
+  \     'name': 'test.ts',
   \     'ruleName': 'semicolon',
   \     'ruleSeverity': 'ERROR',
   \     'startPosition': {
@@ -71,7 +83,7 @@ Execute(The tslint handler should parse lines correctly):
   \       'innerStart': 14,
   \       'innerText': ';'
   \     },
-  \     'name': 'app/test.ts',
+  \     'name': 'test.ts',
   \     'ruleSeverity': 'WARNING',
   \     'startPosition': {
   \       'character': 7,
@@ -91,7 +103,7 @@ Execute(The tslint handler should parse lines correctly):
   \       'innerStart': 14,
   \       'innerText': ';'
   \     },
-  \     'name': 'app/something-else.ts',
+  \     'name': 'something-else.ts',
   \     'ruleName': 'something',
   \     'ruleSeverity': 'WARNING',
   \     'startPosition': {
@@ -107,7 +119,7 @@ Execute(The tslint handler should parse lines correctly):
   \       "position": 14590
   \     },
   \     "failure": "Calls to console.log are not allowed.",
-  \     'name': 'app/test.ts',
+  \     'name': 'test.ts',
   \     "ruleName": "no-console",
   \     "startPosition": {
   \       "character": 8,
diff --git a/test/test_get_abspath.vader b/test/test_get_abspath.vader
new file mode 100644
index 00000000..2def3773
--- /dev/null
+++ b/test/test_get_abspath.vader
@@ -0,0 +1,15 @@
+Execute(Relative paths should be resolved correctly):
+  AssertEqual
+  \ '/foo/bar/baz/whatever.txt',
+  \ ale#path#GetAbsPath('/foo/bar/xyz', '../baz/whatever.txt')
+  AssertEqual
+  \ '/foo/bar/xyz/whatever.txt',
+  \ ale#path#GetAbsPath('/foo/bar/xyz', './whatever.txt')
+  AssertEqual
+  \ '/foo/bar/xyz/whatever.txt',
+  \ ale#path#GetAbsPath('/foo/bar/xyz', 'whatever.txt')
+
+Execute(Absolute paths should be resolved correctly):
+  AssertEqual
+  \ '/ding/dong',
+  \ ale#path#GetAbsPath('/foo/bar/xyz', '/ding/dong')
diff --git a/test/test_loclist_corrections.vader b/test/test_loclist_corrections.vader
index e0a21da1..e6844d8e 100644
--- a/test/test_loclist_corrections.vader
+++ b/test/test_loclist_corrections.vader
@@ -303,7 +303,6 @@ Execute(FixLocList should interpret temporary filenames as being the current buf
   \     'lnum': 2,
   \     'col': 0,
   \     'bufnr': bufnr(''),
-  \     'filename': b:temp_name,
   \     'vcol': 0,
   \     'type': 'E',
   \     'nr': -1,
@@ -314,7 +313,6 @@ Execute(FixLocList should interpret temporary filenames as being the current buf
   \     'lnum': 3,
   \     'col': 0,
   \     'bufnr': bufnr(''),
-  \     'filename': b:temp_name,
   \     'vcol': 0,
   \     'type': 'E',
   \     'nr': -1,