diff --git a/src/util/u_debug_stack.h b/src/util/u_debug_stack.h
index f729ba66500..f4971ec6c53 100644
--- a/src/util/u_debug_stack.h
+++ b/src/util/u_debug_stack.h
@@ -29,6 +29,7 @@
 #define U_DEBUG_STACK_H_
 
 #include <stdio.h>
+#include <stdint.h>
 
 #include "util/detect_os.h"