Index: package/kernel/modules/network.mk
===================================================================
--- package/kernel/modules/network.mk   (revision 6279)
+++ package/kernel/modules/network.mk   (working copy)
@@ -213,15 +213,16 @@
   TITLE:=Microsoft PPP compression/encryption
   DESCRIPTION:=Kernel modules for Microsoft PPP compression/encryption
   DEPENDS:=kmod-ppp
-  KCONFIG:=$(CONFIG_PPP_MPPE)
   SUBMENU:=$(NSMENU)
 endef

 define KernelPackage/mppe/2.4
+  KCONFIG:=$(CONFIG_PPP_MPPE_MPPC)
   FILES:=$(MODULES_DIR)/kernel/drivers/net/ppp_mppe_mppc.$(LINUX_KMOD_SUFFIX)
 endef

 define KernelPackage/mppe/2.6
+  KCONFIG:=$(CONFIG_PPP_MPPE)
   FILES:=$(MODULES_DIR)/kernel/drivers/net/ppp_mppe.$(LINUX_KMOD_SUFFIX)
 endef
 $(eval $(call KernelPackage,mppe))