diff --git a/Makefile b/Makefile
index c7c0eac..5e374af 100644
--- a/Makefile
+++ b/Makefile
@@ -23,11 +23,12 @@ update-bindings:
 
 .PHONY: $(BUILDSRC)
 $(BUILDSRC):
-	rm -rf $(BUILDSRC)
-	cp -a $(PPSRC)/ $(BUILDSRC)
-	cp -a debian $(BUILDSRC)
-	perl -MDevel::PPPort -e 'Devel::PPPort::WriteFile("$(BUILDSRC)/ppport.h");'
-	echo "git clone git://git.proxmox.com/git/libarchive-perl\\ngit checkout $(shell git rev-parse HEAD)" >$(BUILDSRC)/debian/SOURCE
+	rm -rf $@ $@.tmp
+	cp -a $(PPSRC)/ $@.tmp
+	cp -a debian $@.tmp
+	perl -MDevel::PPPort -e 'Devel::PPPort::WriteFile("$@.tmp/ppport.h");'
+	echo "git clone git://git.proxmox.com/git/libarchive-perl\\ngit checkout $(shell git rev-parse HEAD)" >$@.tmp/debian/SOURCE
+	mv $@.tmp $@
 
 .PHONY: dsc
 dsc: