diff --git a/Android.mk b/Android.mk
index 6b24fd0..26d6001 100644
--- a/Android.mk
+++ b/Android.mk
@@ -702,7 +702,7 @@
     $(eval LOCAL_MODULE_STEM := $(1)) \
     $(eval my_gen := $(call local-intermediates-dir)/gen/$(1)) \
     $(eval $(my_gen) : PRIVATE_CUSTOM_TOOL = \
-        tar -jxf $$< -C $$(dir $$@) $$(notdir $$@)) \
+        tar -jxf $$< -C $$(dir $$@) $$(notdir $$@) && touch $$@) \
     $(eval $(my_gen) : $(LOCAL_PATH)/sample_images/sample_images.tar.bz2 ; \
         $$(transform-generated-source)) \
     $(eval LOCAL_PREBUILT_MODULE_FILE := $(my_gen)) \