diff --git a/package/network/services/ppp/Makefile b/package/network/services/ppp/Makefile
index 9fbee90f12..0c81c46a89 100644
--- a/package/network/services/ppp/Makefile
+++ b/package/network/services/ppp/Makefile
@@ -36,7 +36,7 @@ endef
 
 define Package/ppp
 $(call Package/ppp/Default)
-  DEPENDS:=+kmod-ppp
+  DEPENDS:=+kmod-ppp +libpthread +shellsync
   TITLE:=PPP daemon
   VARIANT:=default
 endef