diff --git a/scripts/misc/clang_format_ci.sh b/scripts/misc/clang_format_ci.sh
index 645e222c4..06e33c51c 100755
--- a/scripts/misc/clang_format_ci.sh
+++ b/scripts/misc/clang_format_ci.sh
@@ -40,7 +40,7 @@ git fetch origin master
 git branch --all
 # Get affected files and filter source files
 FILES=$(git diff-tree --no-commit-id --name-only --diff-filter=d -r origin/master "$CURRENT_BRANCH" \
-        | grep '\.c\|\.cpp\|\.cxx\|\.h\|\.hpp\|\.hxx\|\.mm')
+        | grep '\.c$\|\.cpp$\|\.cxx$\|\.h$\|\.hpp$\|\.hxx$\|\.mm$')
 
 if [ -z "$FILES" ]; then
   printf "No affected files, exiting.\n"