diff --git a/esphome/components/ethernet/esp_eth_phy_jl1101.c b/esphome/components/ethernet/esp_eth_phy_jl1101.c
index 7c113244ca..5e73e99101 100644
--- a/esphome/components/ethernet/esp_eth_phy_jl1101.c
+++ b/esphome/components/ethernet/esp_eth_phy_jl1101.c
@@ -339,4 +339,6 @@ esp_eth_phy_t *esp_eth_phy_new_jl1101(const eth_phy_config_t *config) {
 err:
   return NULL;
 }
+
+#endif /* USE_ARDUINO */
 #endif /* USE_ESP32 */