diff --git a/.gitignore b/.gitignore
index 25fac6ae83fb2..9ea10718c520f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,6 +38,7 @@ UnitTestResults.html
 *.tmp
 *.tmp_proj
 *.log
+*.wrn
 *.vspscc
 *.vssscc
 .builds