diff --git a/functions.mk b/functions.mk
index 399ac1d..bd3ddfb 100644
--- a/functions.mk
+++ b/functions.mk
@@ -202,6 +202,7 @@ $(STAGING_DIR)/$$(DISTRO_NAME)/$$(RELEASE_NAME)/bsp/$$(DEVICE_NAME)/$$(PROFILE_N
 	@# Not preserving modification time, aka -t
 	$(ECHOCTL)rsync -rLpgoD --exclude profile.mk --exclude extensions $$$$(foreach dep,$$$$+,$$$$(dep)/) $$$$@
 
+undefine BSP_PROFILE_EXTENSION_DIR
 endef
 $$(foreach receipe,$$($$(DISTRO_NAME)_$$(RELEASE_NAME)_RECEIPES),$$(eval $$(call GENERATE_RECEIPE_PROFILE_MATRIX,$$(receipe))))