diff --git a/runtime/ftplugin/tmux.vim b/runtime/ftplugin/tmux.vim
new file mode 100644
index 0000000..9c92ff9
--- /dev/null
+++ b/runtime/ftplugin/tmux.vim
@@ -0,0 +1,11 @@
+" Vim filetype plugin file
+" Language:	Tmux config
+" Maintainer:	Eric Pruitt <eric.pruitt@gmail.com>
+" Last Change:  2017 Mar 04
+
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+setlocal commentstring=#\ %s