diff --git a/esphome/core/scheduler.h b/esphome/core/scheduler.h
index 43b44c3eed7..fa95484e7f1 100644
--- a/esphome/core/scheduler.h
+++ b/esphome/core/scheduler.h
@@ -10,13 +10,11 @@
 #endif
 
 #include "esphome/core/component.h"
+#include "esphome/core/hal.h"
 #include "esphome/core/helpers.h"
 
 namespace esphome {
 
-// Declared in hal.h - forward declare to avoid circular include
-uint64_t millis_64();
-
 class Component;
 struct RetryArgs;