diff --git a/src/libratbag-test.h b/src/libratbag-test.h
index ef883e89..824402d9 100644
--- a/src/libratbag-test.h
+++ b/src/libratbag-test.h
@@ -24,6 +24,8 @@
 
 #pragma once
 
+#include <stdint.h>
+
 #include "libratbag.h"
 
 #define RATBAG_TEST_MAX_PROFILES 12