diff --git a/src/modules/poweraccent/PowerAccentKeyboardService/KeyboardListener.h b/src/modules/poweraccent/PowerAccentKeyboardService/KeyboardListener.h
index 65d2dca34a..a000476999 100644
--- a/src/modules/poweraccent/PowerAccentKeyboardService/KeyboardListener.h
+++ b/src/modules/poweraccent/PowerAccentKeyboardService/KeyboardListener.h
@@ -1,7 +1,7 @@
 #pragma once
 
 #include "KeyboardListener.g.h"
-
+#include <mutex>
 #include <spdlog/stopwatch.h>
 
 namespace winrt::PowerToys::PowerAccentKeyboardService::implementation