diff --git a/src/python_testing/TC_OCC_2_1.py b/src/python_testing/TC_OCC_2_1.py
index 6dd20cb6940f84..6e116d5ba13376 100644
--- a/src/python_testing/TC_OCC_2_1.py
+++ b/src/python_testing/TC_OCC_2_1.py
@@ -72,6 +72,7 @@ async def test_TC_OCC_2_1(self):
             asserts.assert_less_equal(occupancy_dut, 0b00000001, "Occupancy attribute is not in valid range")
         else:
             logging.info("Occupancy attribute is a mandatory attribute. Test step fails.")
+            asserts.fail("Missing mandatory attribute Occupancy")
 
         self.step(3)
         if attributes.OccupancySensorType.attribute_id in attribute_list: