diff --git a/tests/components/vicare/test_config_flow.py b/tests/components/vicare/test_config_flow.py
index 283f06b754d..e24f7ea834b 100644
--- a/tests/components/vicare/test_config_flow.py
+++ b/tests/components/vicare/test_config_flow.py
@@ -30,7 +30,7 @@ VALID_CONFIG = {
 DHCP_INFO = dhcp.DhcpServiceInfo(
     ip="1.1.1.1",
     hostname="mock_hostname",
-    macaddress=MOCK_MAC,
+    macaddress=MOCK_MAC.lower().replace(":", ""),
 )