diff --git a/scripts/run_tests.py b/scripts/run_tests.py
index 56ca1824..da9649f9 100644
--- a/scripts/run_tests.py
+++ b/scripts/run_tests.py
@@ -70,7 +70,7 @@ class A:
     exit()
 ''', capture_output=True, check=True)
         res.check_returncode()
-        assert 'ans_1: 3' in res.stdout
-        assert 'ans_2: abc' in res.stdout
+        assert 'ans_1: 3' in res.stdout, res.stdout
+        assert 'ans_2: abc' in res.stdout, res.stdout
 
 print("ALL TESTS PASSED")