diff --git a/ebtables-extensions/Makefile b/ebtables-extensions/Makefile
index fadfd01b9..9667cec49 100644
--- a/ebtables-extensions/Makefile
+++ b/ebtables-extensions/Makefile
@@ -234,7 +234,6 @@ endif
 	$(CP) $(PKG_BUILD_DIR)/src/ebt_mldsnooping.h $(1)/include/uapi/linux/netfilter_bridge/
 endef
 
-KERNEL_MAKE_FLAGS += -I$(LINUX_DIR)/include
 ifeq ($(CONFIG_TARGET_airoha),y)
   KERNEL_MAKE_FLAGS += PLATFORM="ECONET"
 endif