diff --git a/build.sh b/build.sh
index 39a6898..6c7f7d6 100755
--- a/build.sh
+++ b/build.sh
@@ -42,7 +42,7 @@ install_build_style() {
 
 run_build_style() {
     flake8 vdirsyncer tests
-    ! git grep -i syncroniz
+    ! git grep -il syncroniz $(ls | grep -v 'build.sh')
 }
 
 install_build_docs() {