diff --git a/autorun_post.py b/autorun_post.py
index e9e2a8e63..ba23d70d9 100755
--- a/autorun_post.py
+++ b/autorun_post.py
@@ -48,6 +48,8 @@ def generateCoverageReport(output_dir, repo_dir):
         except subprocess.CalledProcessError as e:
             print("genhtml failed", file=log_file)
             print(e, file=log_file)
+        for f in covfiles:
+            os.remove(f)
 
 
 def collectOne(output_dir, dir_name):