diff --git a/src/misc/alloc.c b/src/misc/alloc.c
index a8aa8640f..c2ca1e0c4 100644
--- a/src/misc/alloc.c
+++ b/src/misc/alloc.c
@@ -2,6 +2,9 @@
 Copyright 1990 Regents of the University of California.  All rights reserved.
 **********/
 
+/* for SIZE_MAX */
+#include <stdint.h>
+
 /* for thread handling */
 #if defined __MINGW32__ || defined _MSC_VER
 #include <windows.h>