diff --git a/tests/scaffold_test.py b/tests/scaffold_test.py
index ee21cf51..2eea285d 100644
--- a/tests/scaffold_test.py
+++ b/tests/scaffold_test.py
@@ -18,7 +18,7 @@ class TestScaffold(unittest.TestCase):
 
         # run demo testcases
         try:
-            subprocess.check_call(["hrun", project_name])
+            subprocess.check_call(["hrun", project_name]， shell=True)
         except subprocess.SubprocessError:
             raise
         finally: