diff --git a/tests/test_cron.py b/tests/test_cron.py
index 30620d99..c7a76a87 100644
--- a/tests/test_cron.py
+++ b/tests/test_cron.py
@@ -18,8 +18,9 @@ def tmp_file(*_):
     tmp_files_ready.set()
     yield tmp_file.name
 
-    if os.path.isfile(tmp_files[0]):
-        os.unlink(tmp_files[0])
+    for f in tmp_files:
+        if os.path.isfile(f):
+            os.unlink(f)
 
 
 def test_cron_execution(tmp_file):