diff --git a/lib/fcntl-safer.h b/lib/fcntl-safer.h
index 8fc564f81..cab6aab1a 100644
--- a/lib/fcntl-safer.h
+++ b/lib/fcntl-safer.h
@@ -18,4 +18,7 @@
 
 /* Written by Paul Eggert.  */
 
+#include <sys/types.h>
+
 int open_safer (char const *, int, ...);
+int creat_safer (char const *, mode_t);