diff --git a/package-21.02/kernel/tops/tops.mk b/package-21.02/kernel/tops/tops.mk
index 09d2a98..e8ccd39 100644
--- a/package-21.02/kernel/tops/tops.mk
+++ b/package-21.02/kernel/tops/tops.mk
@@ -10,6 +10,7 @@
 	CONFIG_MTK_TOPS_GRETAP=$(CONFIG_MTK_TOPS_GRETAP) \
 	CONFIG_MTK_TOPS_L2TP=$(CONFIG_MTK_TOPS_L2TP) \
 	CONFIG_MTK_TOPS_L2TP_V2=$(CONFIG_MTK_TOPS_L2TP_V2) \
+	CONFIG_MTK_TOPS_PPTP=$(CONFIG_MTK_TOPS_PPTP) \
 	CONFIG_MTK_TOPS_SECURE_FW=$(CONFIG_MTK_TOPS_SECURE_FW)
 
 EXTRA_CFLAGS+= \
@@ -19,6 +20,7 @@
 EXTRA_CFLAGS+= \
 	-I$(LINUX_DIR)/drivers/net/ethernet/mediatek/ \
 	-I$(LINUX_DIR)/drivers/dma/ \
+	-I$(LINUX_DIR)/net/l2tp/ \
 	-I$(KERNEL_BUILD_DIR)/pce/inc/ \
 	-DCONFIG_TOPS_TNL_NUM=$(CONFIG_TOPS_TNL_NUM) \
 	-DCONFIG_TOPS_TNL_MAP_BIT=$(CONFIG_TOPS_TNL_MAP_BIT) \