diff --git a/warnings/refs-must-have-owner.md b/warnings/refs-must-have-owner.md
index 471a0699..6a8e0b77 100644
--- a/warnings/refs-must-have-owner.md
+++ b/warnings/refs-must-have-owner.md
@@ -24,4 +24,4 @@ Only a ReactOwner can have refs. This usually means that you're trying to add a
 
 Bower does a good job of deduplicating dependencies, but NPM does not. If you aren't doing anything (fancy) with refs, there is a good chance that the problem is not with your refs, but rather an issue with having multiple copies of React loaded into your project. Sometimes, when you pull in a third-party module via npm, you will get a duplicate copy of the dependency library, and this can create problems.
 
-If you are using npm... `npm ls` or `npm ls | grep react` might help illuminate.
+If you are using npm... `npm ls` or `npm ls react` might help illuminate.