diff --git a/tests/test_backends_qibotn.py b/tests/test_backends_qibotn.py
index 5bceca8dc1..ae850afefa 100644
--- a/tests/test_backends_qibotn.py
+++ b/tests/test_backends_qibotn.py
@@ -10,5 +10,7 @@
 
 
 def test_backend_qibotn():
-    qibo.set_backend(backend="qibotn", platform="qutensornet")
+    qibo.set_backend(backend="qibotn", platform="qutensornet", runcard=None)
     assert isinstance(GlobalBackend(), QuimbBackend)
+
+    qibo.set_backend("numpy")