diff --git a/.gitignore b/.gitignore
index c11a4e6..76e1319 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 /.settings
 /.project
 /.cproject
+/.root
 /kern/compile/
 /defs.mk
 build
diff --git a/mk/os161.kernel.mk b/mk/os161.kernel.mk
index ebb8003..9825679 100644
--- a/mk/os161.kernel.mk
+++ b/mk/os161.kernel.mk
@@ -163,6 +163,9 @@ includelinks:
 clean:
 	rm -f *.o *.a tags $(KERNEL)
 	rm -rf includelinks
+	@ABSTOP=$$(readlink -f $(TOP))
+	unlink $(OSTREE)/.src
+	unlink $(TOP)/.root
 
 distclean cleandir: clean
 	rm -f .depend
@@ -188,6 +191,9 @@ install:
 	cp $(KERNEL) $(OSTREE)/$(KERNEL)-$(CONFNAME)
 	-rm -f $(OSTREE)/$(KERNEL)
 	ln -s $(KERNEL)-$(CONFNAME) $(OSTREE)/$(KERNEL)
+	@ABSTOP=$$(readlink -f $(TOP))
+	ln -Tsf $(ABSTOP) $(OSTREE)/.src
+	ln -Tsf $(OSTREE) $(ABSTOP)/.root
 
 #
 # Run tags on all the sources and header files. This is probably not