diff --git a/tests/components/intellifire/test_config_flow.py b/tests/components/intellifire/test_config_flow.py
index 93aef0944aa..1bc8cc0e06a 100644
--- a/tests/components/intellifire/test_config_flow.py
+++ b/tests/components/intellifire/test_config_flow.py
@@ -322,7 +322,7 @@ async def test_dhcp_discovery_intellifire_device(
         context={"source": config_entries.SOURCE_DHCP},
         data=dhcp.DhcpServiceInfo(
             ip="1.1.1.1",
-            macaddress="AA:BB:CC:DD:EE:FF",
+            macaddress="aabbcceeddff",
             hostname="zentrios-Test",
         ),
     )
@@ -352,7 +352,7 @@ async def test_dhcp_discovery_non_intellifire_device(
         context={"source": config_entries.SOURCE_DHCP},
         data=dhcp.DhcpServiceInfo(
             ip="1.1.1.1",
-            macaddress="AA:BB:CC:DD:EE:FF",
+            macaddress="aabbcceeddff",
             hostname="zentrios-Evil",
         ),
     )