diff --git a/package/kernel/modules/netsupport.mk b/package/kernel/modules/netsupport.mk
index bdd0f7516..4f024f2be 100644
--- a/package/kernel/modules/netsupport.mk
+++ b/package/kernel/modules/netsupport.mk
@@ -181,6 +181,7 @@ define KernelPackage/ipsec
   KCONFIG:= \
 	CONFIG_NET_KEY \
 	CONFIG_XFRM_USER \
+	CONFIG_INET_IPCOMP \
 	CONFIG_XFRM_IPCOMP
   FILES:=$(foreach mod,$(IPSEC-m),$(LINUX_DIR)/net/$(mod).ko)
   AUTOLOAD:=$(call AutoLoad,30,$(notdir $(IPSEC-m)))