diff --git a/radio/src/gui/colorlcd/str_functions.h b/radio/src/gui/colorlcd/str_functions.h
index 3574104e4..5d9c64559 100644
--- a/radio/src/gui/colorlcd/str_functions.h
+++ b/radio/src/gui/colorlcd/str_functions.h
@@ -19,6 +19,7 @@
  * GNU General Public License for more details.
  */
 #pragma once
+#include <cstdint>
 #include <wctype.h>
 #include <string>
 #include <iostream>