diff --git a/aidge_backend_cpu/unit_tests/test_recipies.py b/aidge_backend_cpu/unit_tests/test_recipies.py
index 841c15590e9dac7596958b8392c99948978723c5..e343fad1aeda82555a57778a394a4590b1e8772e 100644
--- a/aidge_backend_cpu/unit_tests/test_recipies.py
+++ b/aidge_backend_cpu/unit_tests/test_recipies.py
@@ -31,7 +31,7 @@ class test_recipies(unittest.TestCase):
 
         input_node = aidge_core.Producer(input_tensor, "X")
         conv = aidge_core.Conv2D(1, 1, [3, 3], name="Conv0")
-        bn = aidge_core.BatchNorm2D(name="Add0")
+        bn = aidge_core.BatchNorm2D(1, name="Add0")
 
         graph_view = aidge_core.sequential([conv, bn])