diff --git a/contrib/vim-syntax/syntax/dockerfile.vim b/contrib/vim-syntax/syntax/dockerfile.vim
index 90e0651b66..fb5cab23cb 100644
--- a/contrib/vim-syntax/syntax/dockerfile.vim
+++ b/contrib/vim-syntax/syntax/dockerfile.vim
@@ -20,3 +20,5 @@ highlight link dockerfileString String
 
 syntax match dockerfileComment "\v^\s*#.*$"
 highlight link dockerfileComment Comment
+
+set commentstring=#\ %s