diff --git a/autoload/ale/handlers/languagetool.vim b/autoload/ale/handlers/languagetool.vim
index aaad4c99..10e049df 100644
--- a/autoload/ale/handlers/languagetool.vim
+++ b/autoload/ale/handlers/languagetool.vim
@@ -10,7 +10,7 @@ endfunction
 function! ale#handlers#languagetool#GetCommand(buffer) abort
     let l:executable = ale#handlers#languagetool#GetExecutable(a:buffer)
 
-    return ale#Escape(l:executable) . ' --autoDetect '
+    return ale#Escape(l:executable) . ' --autoDetect %s'
 endfunction
 
 function! ale#handlers#languagetool#HandleOutput(buffer, lines) abort
diff --git a/test/command_callback/test_languagetool_command_callback.vader b/test/command_callback/test_languagetool_command_callback.vader
index 1b5f0e00..a79662b9 100644
--- a/test/command_callback/test_languagetool_command_callback.vader
+++ b/test/command_callback/test_languagetool_command_callback.vader
@@ -6,10 +6,10 @@ After:
 
 Execute(The default command should be correct):
   AssertLinter 'languagetool', ale#Escape('languagetool')
-  \ . ' --autoDetect '
+  \ . ' --autoDetect %s'
 
 Execute(Should be able to set a custom executable):
   let g:ale_languagetool_executable = 'foobar'
 
   AssertLinter 'foobar' , ale#Escape('foobar')
-  \   . ' --autoDetect '
+  \   . ' --autoDetect %s'