Index: boot/Makefile.uboot
===================================================================
--- boot/Makefile.uboot	(revision f94b95b1118101d4318f9cd7f33101a71d8c081a)
+++ boot/Makefile.uboot	(revision 40ad3757f134a67e24040f21f4241958c58f5d0c)
@@ -40,5 +40,5 @@
 
 $(POST_OUTPUT): $(BIN_OUTPUT)
-	$(MKUIMAGE) -name "$(IMAGE_NAME)" -laddr $(LADDR) -saddr $(SADDR) $< $@
+	$(MKUIMAGE) -name "$(IMAGE_NAME)" -laddr $(LADDR) -saddr $(SADDR) -ostype $(UIMAGE_OS) $< $@
 
 clean: