diff --git a/.github/workflows/mdns__build-target-test.yml b/.github/workflows/mdns__build-target-test.yml
index d222307c7..905a88b1a 100644
--- a/.github/workflows/mdns__build-target-test.yml
+++ b/.github/workflows/mdns__build-target-test.yml
@@ -24,6 +24,11 @@ jobs:
         shell: bash
         run: |
           . ${IDF_PATH}/export.sh
+          if [[ "${{ matrix.idf_ver }}" == "latest" ]]; then
+            export EXPECTED_WARNING="warning: unknown kconfig symbol 'EXAMPLE_ETH_PHY_IP101'"
+          else
+            export EXPECTED_WARNING="warning: unknown kconfig symbol 'EXAMPLE_ETH_PHY_GENERIC'"
+          fi
           python -m pip install idf-build-apps
           # Build default configs for all targets
           python ./ci/build_apps.py components/mdns/${{ matrix.test.path }} -r default -d
diff --git a/components/mdns/examples/query_advertise/sdkconfig.ci.eth_custom_netif b/components/mdns/examples/query_advertise/sdkconfig.ci.eth_custom_netif
index b9d712041..a8dee3f38 100644
--- a/components/mdns/examples/query_advertise/sdkconfig.ci.eth_custom_netif
+++ b/components/mdns/examples/query_advertise/sdkconfig.ci.eth_custom_netif
@@ -12,6 +12,7 @@ CONFIG_EXAMPLE_CONNECT_ETHERNET=y
 CONFIG_EXAMPLE_CONNECT_WIFI=n
 CONFIG_EXAMPLE_USE_INTERNAL_ETHERNET=y
 CONFIG_EXAMPLE_ETH_PHY_IP101=y
+CONFIG_EXAMPLE_ETH_PHY_GENERIC=y
 CONFIG_EXAMPLE_ETH_MDC_GPIO=23
 CONFIG_EXAMPLE_ETH_MDIO_GPIO=18
 CONFIG_EXAMPLE_ETH_PHY_RST_GPIO=5