Index: boot/arch/amd64/Makefile.inc
===================================================================
--- boot/arch/amd64/Makefile.inc	(revision b4b534ac1d1515633baff0d563e9c16938bfe19f)
+++ boot/arch/amd64/Makefile.inc	(revision 356c3860b9a6bf870e181055ae6f505c2a7ae7a7)
@@ -66,4 +66,7 @@
 	$(USPACE_PATH)/app/wavplay/wavplay
 
+RD_DATA_NON_ESSENTIAL += \
+	$(USPACE_PATH)/app/wavplay/demo.wav
+
 BOOT_OUTPUT = $(ROOT_PATH)/image.iso
 PREBUILD = $(INITRD).img