diff --git a/format.sh b/format.sh
index 2c821fb4..817d7fa3 100755
--- a/format.sh
+++ b/format.sh
@@ -28,7 +28,6 @@ clang-format \
     UseTab: Never, \
   }" "$@" \
   -i $(dirname $0)/CSSLayout/*.{h,c,cpp} \
-     $(dirname $0)/tests/*.{h,c,cpp} \
      $(dirname $0)/tests/CSSLayoutTestUtils/*.{h,c,cpp} \
      $(dirname $0)/benchmarks/*.{h,c,cpp} \
      $(dirname $0)/java/jni/*.{h,c,cpp}