diff --git a/source/Core/Inc/main.hpp b/source/Core/Inc/main.hpp
index 42ee98e0..f6f84cfb 100644
--- a/source/Core/Inc/main.hpp
+++ b/source/Core/Inc/main.hpp
@@ -1,6 +1,6 @@
 #ifndef __MAIN_H
 #define __MAIN_H
-
+#include <stdint.h>
 #include "OLED.hpp"
 #include "Setup.h"
 extern uint32_t currentTempTargetDegC;