diff --git a/lib/cdist/test/exec/local.py b/lib/cdist/test/exec/local.py
index 8585f87a..f19bf55c 100644
--- a/lib/cdist/test/exec/local.py
+++ b/lib/cdist/test/exec/local.py
@@ -114,7 +114,7 @@ class LocalTestCase(unittest.TestCase):
         fd = open(script, "w")
         fd.writelines(["#!/bin/sh\n", "echo foobar"])
         fd.close()
-        self.assertEqual(self.local.run_script(script), "foobar\n")
+        self.assertEqual(self.local.run_script(script, return_output=True), "foobar\n")
 
     def test_mkdir(self):
         temp_dir = self.mkdtemp(dir=self.temp_dir)