diff --git a/hooks/pre-commit b/hooks/pre-commit
index 51f9c33..a93bf91 100755
--- a/hooks/pre-commit
+++ b/hooks/pre-commit
@@ -96,7 +96,7 @@ do
         diff="$diff$(cargo fmt -- --skip-children --write-mode=diff $file)"
 	fi
 done
-if grep --quiet "^Diff at line" <<< "$diff"; then
+if grep --quiet "^[-+]" <<< "$diff"; then
     FMTRESULT=1
 fi