diff --git a/libc/include/sys/resource.h b/libc/include/sys/resource.h
index a7de6f0..ef325c7 100644
--- a/libc/include/sys/resource.h
+++ b/libc/include/sys/resource.h
@@ -40,6 +40,8 @@
 #include <linux/resource.h>
 #undef   getrusage
 
+typedef unsigned long rlim_t;
+
 __BEGIN_DECLS
 
 extern int getpriority(int, int);