diff --git a/flash/bootbox/Makefile b/flash/bootbox/Makefile
index 276782053f..e08c26f53e 100644
--- a/flash/bootbox/Makefile
+++ b/flash/bootbox/Makefile
@@ -82,6 +82,6 @@ clean:
 	@echo "cleaning bootbox"
 	@-rm -f $(OBJS) $(BUILDDIR)/$(BINARY) $(OBJDIR)/bootbox.asm $(OBJDIR)/rockbox.ucl \
 	$(OBJDIR)/bootbox.bin $(OBJDIR)/bootbox.elf $(OBJDIR)/*.map \
-	$(LINKFILE) $(MAXOUTFILE) $(DEPFILE)
+	$(LINKFILE) $(MAXOUTFILE) $(DEPFILE) $(FLASHFILE)
 
 -include $(DEPFILE)