diff --git a/lib/libc/net/nscache.c b/lib/libc/net/nscache.c
index 68cec2129a1..88a115be673 100644
--- a/lib/libc/net/nscache.c
+++ b/lib/libc/net/nscache.c
@@ -29,6 +29,7 @@
 __FBSDID("$FreeBSD$");
 
 #include "namespace.h"
+#define _NS_PRIVATE
 #include <nsswitch.h>
 #include <stdlib.h>
 #include <string.h>