diff --git a/src/etc/vim/after/ftplugin/rust.vim b/src/etc/vim/after/ftplugin/rust.vim
index 56616de6aa8..f0f1c85ee97 100644
--- a/src/etc/vim/after/ftplugin/rust.vim
+++ b/src/etc/vim/after/ftplugin/rust.vim
@@ -1,5 +1,5 @@
-"Highlight the 78th text column
+"Highlight the 100th text column
 "Feature became available in v7.3
 if version >= 703
-    set colorcolumn=78
+    set colorcolumn=100
 endif