diff --git a/Makefile b/Makefile
index e38d44a810..5301883061 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,8 @@ ifneq ($(OPENWRT_BUILD),1)
   export OPENWRT_BUILD
   GREP_OPTIONS=
   export GREP_OPTIONS
+  CDPATH=
+  export CDPATH
   include $(TOPDIR)/include/debug.mk
   include $(TOPDIR)/include/depends.mk
   include $(TOPDIR)/include/toplevel.mk