diff --git a/scripts/grade-04.sh b/scripts/grade-04.sh
index 7056f53..a5d1bfc 100755
--- a/scripts/grade-04.sh
+++ b/scripts/grade-04.sh
@@ -18,8 +18,7 @@ RUNNERS=(
 )
 
 # Lints.
-cargo fmt --check
-cargo clippy
+run_linters || exit 1
 
 # Executes test for each runner.
 for RUNNER in "${RUNNERS[@]}"; do