diff --git a/mk/qemu.mk b/mk/qemu.mk
index ba783e3..69f6b62 100644
--- a/mk/qemu.mk
+++ b/mk/qemu.mk
@@ -52,6 +52,11 @@ qemu: build/harddrive.bin build/extra.bin
 		-drive file=build/harddrive.bin,format=raw \
 		-drive file=build/extra.bin,format=raw
 
+qemu_no_build: build/extra.bin
+	$(QEMU) $(QEMUFLAGS) \
+		-drive file=build/harddrive.bin,format=raw \
+		-drive file=build/extra.bin,format=raw
+
 qemu_mbr: build/harddrive-mbr.bin build/extra.bin
 	$(QEMU) $(QEMUFLAGS) \
 		-drive file=build/harddrive-mbr.bin,format=raw \