diff --git a/format.sh b/format.sh
index 146aef70a..d5a17e438 100755
--- a/format.sh
+++ b/format.sh
@@ -1,5 +1,11 @@
-find src tools demos tests -name \*.c -exec clang-format -i {} \;
-find src tools demos tests -name \*.h -exec clang-format -i {} \;
-find src tools demos tests -name \*.cc -exec clang-format -i {} \;
-find src tools demos tests -name \*.cpp -exec clang-format -i {} \;
+find src tools demos -name \*.c -exec clang-format -i {} \;
+find src tools demos -name \*.h -exec clang-format -i {} \;
+find src tools demos -name \*.cc -exec clang-format -i {} \;
+find src tools demos -name \*.cpp -exec clang-format -i {} \;
+
+for f in tests/*.cpp tests/*.c tests/*.cc
+do
+  echo "clang-format -i $f"
+  clang-format -i $f
+done