diff --git a/tests/components/sma/test_config_flow.py b/tests/components/sma/test_config_flow.py
index c8939ef2d64..29779ec2773 100644
--- a/tests/components/sma/test_config_flow.py
+++ b/tests/components/sma/test_config_flow.py
@@ -28,13 +28,13 @@ from tests.conftest import MockConfigEntry
 DHCP_DISCOVERY = DhcpServiceInfo(
     ip="1.1.1.1",
     hostname="SMA123456",
-    macaddress="0015BB00abcd",
+    macaddress="0015bb00abcd",
 )
 
 DHCP_DISCOVERY_DUPLICATE = DhcpServiceInfo(
     ip="1.1.1.1",
     hostname="SMA123456789",
-    macaddress="0015BB00abcd",
+    macaddress="0015bb00abcd",
 )