diff --git a/net/openswan/Makefile b/net/openswan/Makefile
index c236b292c..d44d8ea25 100644
--- a/net/openswan/Makefile
+++ b/net/openswan/Makefile
@@ -54,12 +54,7 @@ $(call Package/openswan/Default/description)
  This package contains the Openswan kernel module.
 endef
 
-TARGET_CPPFLAGS = \
-	$(TARGET_CPPFLAGS) \
-	-I$(LINUX_DIR)/include
-
-TARGET_LDFLAGS = \
-	$(TARGET_LDFLAGS)
+TARGET_CPPFLAGS += -I$(LINUX_DIR)/include
 
 OPENSWAN_MAKE := $(MAKE) -C $(PKG_BUILD_DIR) \
 	$(TARGET_CONFIGURE_OPTS) \