diff --git a/tests/components/dlink/conftest.py b/tests/components/dlink/conftest.py
index 73e6baa2666..98cf042c0a3 100644
--- a/tests/components/dlink/conftest.py
+++ b/tests/components/dlink/conftest.py
@@ -18,6 +18,7 @@ from tests.common import MockConfigEntry
 HOST = "1.2.3.4"
 PASSWORD = "123456"
 MAC = format_mac("AA:BB:CC:DD:EE:FF")
+DHCP_FORMATTED_MAC = MAC.replace(":", "")
 USERNAME = "admin"
 
 CONF_DHCP_DATA = {
@@ -30,13 +31,13 @@ CONF_DATA = CONF_DHCP_DATA | {CONF_HOST: HOST}
 
 CONF_DHCP_FLOW = dhcp.DhcpServiceInfo(
     ip=HOST,
-    macaddress=MAC,
+    macaddress=DHCP_FORMATTED_MAC,
     hostname="dsp-w215",
 )
 
 CONF_DHCP_FLOW_NEW_IP = dhcp.DhcpServiceInfo(
     ip="5.6.7.8",
-    macaddress=MAC,
+    macaddress=DHCP_FORMATTED_MAC,
     hostname="dsp-w215",
 )
 
@@ -59,7 +60,7 @@ def config_entry(hass: HomeAssistant) -> MockConfigEntry:
 @pytest.fixture
 def config_entry_with_uid(hass: HomeAssistant) -> MockConfigEntry:
     """Add config entry with unique ID in Home Assistant."""
-    return create_entry(hass, unique_id="aa:bb:cc:dd:ee:ff")
+    return create_entry(hass, unique_id="aabbccddeeff")
 
 
 @pytest.fixture
diff --git a/tests/components/dlink/test_config_flow.py b/tests/components/dlink/test_config_flow.py
index 5cd34987646..a778a4ccb22 100644
--- a/tests/components/dlink/test_config_flow.py
+++ b/tests/components/dlink/test_config_flow.py
@@ -152,7 +152,7 @@ async def test_dhcp_already_configured(
 
     assert result["type"] == data_entry_flow.FlowResultType.ABORT
     assert result["reason"] == "already_configured"
-    assert config_entry.unique_id == "aa:bb:cc:dd:ee:ff"
+    assert config_entry.unique_id == "aabbccddeeff"
 
 
 async def test_dhcp_unique_id_assignment(