diff --git a/bin/git-reset-master b/bin/git-reset-master
index e2a1486..4a1b4d0 100755
--- a/bin/git-reset-master
+++ b/bin/git-reset-master
@@ -18,7 +18,7 @@ fi
 echo "OK"
 
 echo -n "CHECK uncommited files: "
-if git diff-index --quiet HEAD --; then
+if ! git diff-index --quiet HEAD --; then
   echo "BAD"
   exit 3
 fi