diff --git a/test/lib/test_suite.py b/test/lib/test_suite.py
index 62282d91fdf46f1e2072a78a06acaf735c565d50..a09ae8bf45d974ab6cbb74b7b648fb654119cd0c 100644
--- a/test/lib/test_suite.py
+++ b/test/lib/test_suite.py
@@ -255,7 +255,7 @@ class TestSuite:
 
         if not self.tests:
             # noting to test, exit
-            return 0
+            return []
 
         self.server.deploy(self.ini["config"],
                       self.server.find_exe(self.args.builddir, silent=False),