diff --git a/ctdb/config/events.d/13.per_ip_routing b/ctdb/config/events.d/13.per_ip_routing
index f51d5edf5f8..9a2c346ee58 100755
--- a/ctdb/config/events.d/13.per_ip_routing
+++ b/ctdb/config/events.d/13.per_ip_routing
@@ -178,7 +178,7 @@ get_config_for_ip ()
 	    if [ "$_ip" = "$_i" ] ; then
 		echo -n "$_ip "; ipv4_host_addr_to_net "$_ip" "$_maskbits"
 	    fi
-	done <"${CTDB_PUBLIC_ADDRESSES:-${CTDB_BASE:-/dev/null}${CTDB:+/public_addresses}}"
+	done <"${CTDB_PUBLIC_ADDRESSES:-${CTDB_BASE:-/dev/null}${CTDB_BASE:+/public_addresses}}"
     else
 	[ -f "$CTDB_PER_IP_ROUTING_CONF" ] || return 1