diff --git a/modules/services/networking/dhclient.nix b/modules/services/networking/dhclient.nix
index dc8b378e875..2acef81e1e5 100644
--- a/modules/services/networking/dhclient.nix
+++ b/modules/services/networking/dhclient.nix
@@ -82,10 +82,11 @@ in
                 # Only run dhclient on interfaces of type ARPHRD_ETHER
                 # (1), i.e. Ethernet.  Ignore peth* devices; on Xen,
                 # they're renamed physical Ethernet cards used for
-                # bridging.  Likewise for vif* and tap*.
+                # bridging.  Likewise for vif* and tap* (Xen) and
+                # virbr* and vnet* (libvirt). 
                 if [ "$(cat /sys/class/net/$i/type)" = 1 ]; then
                     if ! for j in ${toString ignoredInterfaces}; do echo $j; done | grep -F -x -q "$i" &&
-                       ! echo "$i" | grep -x -q "peth.*\|vif.*\|tap.*";
+                       ! echo "$i" | grep -x -q "peth.*\|vif.*\|tap.*\|virbr.*\|vnet.*";
 		    then
                         echo "Running dhclient on $i"
                         interfaces="$interfaces $i"