diff --git a/autoload/airline/extensions/default.vim b/autoload/airline/extensions/default.vim
index a3e0c58..817d941 100644
--- a/autoload/airline/extensions/default.vim
+++ b/autoload/airline/extensions/default.vim
@@ -2,7 +2,7 @@
 " vim: et ts=2 sts=2 sw=2
 
 let s:section_truncate_width = get(g:, 'airline#extensions#default#section_truncate_width', {
-      \ 'b': 88,
+      \ 'b': 79,
       \ 'x': 60,
       \ 'y': 88,
       \ 'z': 45,
diff --git a/doc/airline.txt b/doc/airline.txt
index 6b59051..bb99beb 100644
--- a/doc/airline.txt
+++ b/doc/airline.txt
@@ -201,7 +201,7 @@ configuration values that you can use.
 
 * control which sections get truncated and at what width. >
   let g:airline#extensions#default#section_truncate_width = {
-      \ 'b': 88,
+      \ 'b': 79,
       \ 'x': 60,
       \ 'y': 88,
       \ 'z': 45,