diff --git a/tools/whitespace.txt b/tools/whitespace.txt
index d6da56198e..6b33c8b4b4 100644
--- a/tools/whitespace.txt
+++ b/tools/whitespace.txt
@@ -4,4 +4,4 @@ Try to write something funny. And please don't add trailing whitespace.
 Whitespaces are cool, except when they're trailing. They they're kind of
 80s.
 Here's a funny story: What do you call a root beer in a square glass? Beer!
-
+not-a-whitespace