diff --git a/tools/quake3/common/threads.c b/tools/quake3/common/threads.c
index 89f24088..43925cd8 100644
--- a/tools/quake3/common/threads.c
+++ b/tools/quake3/common/threads.c
@@ -26,6 +26,8 @@
 #include <pthread.h>
 #endif
 
+#include <stdint.h>
+
 #include "cmdlib.h"
 #include "mathlib.h"
 #include "inout.h"