diff --git a/openwrt/include/host.mk b/openwrt/include/host.mk
index 93f86dce8a..9eee20fcfb 100644
--- a/openwrt/include/host.mk
+++ b/openwrt/include/host.mk
@@ -23,6 +23,6 @@ $(TOPDIR)/.host.mk: $(INCLUDE_DIR)/host.mk
 			-e 's/i[3-9]86/i386/'`" >> $@
 	@echo "GNU_HOST_NAME:=`$(HOSTCC) -dumpmachine`" >> $@
 	@if tar --version 2>&1 | grep 'GNU' >/dev/null; then \
-		echo "TAR_OPTIONS+=--wildcards" >> $@; \
+		echo "TAR_WILDCARDS:=--wildcards" >> $@; \
 	fi
 
diff --git a/openwrt/toolchain/kernel-headers/Makefile b/openwrt/toolchain/kernel-headers/Makefile
index 3e2cd2ae86..a893b8511c 100644
--- a/openwrt/toolchain/kernel-headers/Makefile
+++ b/openwrt/toolchain/kernel-headers/Makefile
@@ -32,7 +32,7 @@ LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
 
 define Build/Prepare
 	mkdir -p $(TOOLCHAIN_BUILD_DIR)
-	bzcat $(DL_DIR)/$(PKG_SOURCE) | tar -C $(TOOLCHAIN_BUILD_DIR) $(TAR_OPTIONS) - \
+	bzcat $(DL_DIR)/$(PKG_SOURCE) | tar $(TAR_WILDCARDS) -C $(TOOLCHAIN_BUILD_DIR) $(TAR_OPTIONS) - \
 		linux-$(PKG_VERSION)/include \
 		linux-$(PKG_VERSION)/Makefile \
 		linux-$(PKG_VERSION)/Rules.make \