diff --git a/powerline/matchers/vim.py b/powerline/matchers/vim.py
index ee13de8f..7a971da6 100644
--- a/powerline/matchers/vim.py
+++ b/powerline/matchers/vim.py
@@ -10,4 +10,4 @@ def help():
 
 
 def cmdwin():
-	return bool(int(vim.eval('bufname("%") == "[Command Line]"')))
+	return bool(int(vim.eval('bufname("%") is# "[Command Line]"')))