diff --git a/tools/clang-format-check.sh b/tools/clang-format-check.sh
old mode 100644
new mode 100755
index 52f09a1332c..e6279d268d3
--- a/tools/clang-format-check.sh
+++ b/tools/clang-format-check.sh
@@ -4,11 +4,8 @@ clangFormatTargets=$(find . -type f -regex '.*\.\(cpp\|hpp\|h\|cc\|cxx\)')
 
 for inputFile in $clangFormatTargets
 do
-    clang-format-10 -style=file $inputFile > $inputFile-formatted
-    diff $inputFile $inputFile-formatted
+    clang-format-10 --dry-run --Werror -style=file $inputFile
     if [ $? != 0 ] ; then
         exit 1
-    else
-        rm $inputFile-formatted
     fi
 done