diff --git a/runners/s3-benchrunner-c/scripts/lint.py b/runners/s3-benchrunner-c/scripts/lint.py
index 14d30646..6450c73a 100755
--- a/runners/s3-benchrunner-c/scripts/lint.py
+++ b/runners/s3-benchrunner-c/scripts/lint.py
@@ -10,7 +10,7 @@
 
     runner_dir = Path(__file__).parent.parent
     files: list[str] = []
-    for pattern in ['*.cpp', '*.h']:
+    for pattern in ['*.cpp', '*.c', '*.h']:
         for i in runner_dir.glob(pattern):
             files.append(str(i))