diff --git a/esphome/components/mqtt/mqtt_client.cpp b/esphome/components/mqtt/mqtt_client.cpp
index 148316672a..1fea0c80cc 100644
--- a/esphome/components/mqtt/mqtt_client.cpp
+++ b/esphome/components/mqtt/mqtt_client.cpp
@@ -1,5 +1,4 @@
 #include "mqtt_client.h"
-#define USE_MQTT
 
 #ifdef USE_MQTT