diff --git a/lib/tests/run b/lib/tests/run
index 85db74060..6c800c434 100755
--- a/lib/tests/run
+++ b/lib/tests/run
@@ -28,6 +28,6 @@ for mod in mods:
 
 rc = 0
 result = unittest.TextTestRunner(verbosity = 1).run(unittest.TestSuite(tests))
-if result.errors:
+if result.errors or result.failures:
     rc = 1
 raise SystemExit(rc)