diff --git a/src/Makefile.am b/src/Makefile.am
index 03806952e90012f7dea15d09d65895a093e4cb89..016817768b1fa107c99377e190275095287dce2d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3078,8 +3078,7 @@ if WITH_NETWORK
 	    cp $(DESTDIR)$(confdir)/qemu/networks/default.xml.t \
 	      $(DESTDIR)$(confdir)/qemu/networks/default.xml && \
 	    rm $(DESTDIR)$(confdir)/qemu/networks/default.xml.t; }
-	test -e $(DESTDIR)$(confdir)/qemu/networks/autostart/default.xml || \
-	   $(LN_S) ../default.xml \
+	$(LN_S) -f ../default.xml \
 	    $(DESTDIR)$(confdir)/qemu/networks/autostart/default.xml
 endif WITH_NETWORK
 
diff --git a/tools/Makefile.am b/tools/Makefile.am
index c474d750cbd51dfe571ca6b893ef252a4f407e39..7f2c0fcea9a7e1b8880714e46d65d448e9fc3e18 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -424,7 +424,7 @@ NSS_SO_VER = 1
 
 install-exec-hook:
 	cd $(DESTDIR)$(libdir) && \
-	  $(LN_S) libnss_libvirt.so.$(NSS_SO_VER) nss_libvirt.so.$(NSS_SO_VER)
+	  $(LN_S) -f libnss_libvirt.so.$(NSS_SO_VER) nss_libvirt.so.$(NSS_SO_VER)
 
 uninstall-local:
 	-rm -f $(DESTDIR)$(libdir)/nss_libvirt.so.$(NSS_SO_VER)