diff --git a/package/network/services/ppp/patches/512-syncppp.patch b/package/network/services/ppp/patches/512-syncppp.patch
index fcc8c34c92..00de134a07 100644
--- a/package/network/services/ppp/patches/512-syncppp.patch
+++ b/package/network/services/ppp/patches/512-syncppp.patch
@@ -95,7 +95,7 @@
 +#include<stdlib.h>
 +#include<time.h>
 +#include<errno.h>
-+#include "pppd.h"
++#include "pppd-private.h"
 +#include "syncppp.h"
 +
 +int syncppp(int nproc)