Index: src/of_asprintf.m
==================================================================
--- src/of_asprintf.m
+++ src/of_asprintf.m
@@ -20,10 +20,12 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <wchar.h>
+
+#include <sys/types.h>
 
 #import "OFString.h"
 #import "OFAutoreleasePool.h"
 #import "asprintf.h"