diff --git a/esphome/core/defines.h b/esphome/core/defines.h
index 8095ffed4a..97e766455a 100644
--- a/esphome/core/defines.h
+++ b/esphome/core/defines.h
@@ -123,6 +123,7 @@
 #define USE_API_NOISE
 #define USE_API_PLAINTEXT
 #define USE_API_SERVICES
+#define USE_API_CUSTOM_SERVICES
 #define API_MAX_SEND_QUEUE 8
 #define USE_MD5
 #define USE_SHA256