diff --git a/esphome/core/scheduler.h b/esphome/core/scheduler.h
index ed9efd718a5..92c4c7adfc7 100644
--- a/esphome/core/scheduler.h
+++ b/esphome/core/scheduler.h
@@ -298,7 +298,7 @@ class Scheduler {
   // On non-ESP32 platforms, millis_64() HAL function delegates to this method
   // which tracks 32-bit millis() rollover using millis_major_ and last_millis_.
   // On ESP32, millis_64() uses esp_timer_get_time() directly.
-  friend uint64_t ::esphome::millis_64();
+  friend uint64_t millis_64();
   uint64_t millis_64_impl_(uint32_t now);
 #endif
   // Cleanup logically deleted items from the scheduler