diff --git a/deluge/ui/gtkui/peers_tab.py b/deluge/ui/gtkui/peers_tab.py
index 6b2cf9a48..1df379e90 100644
--- a/deluge/ui/gtkui/peers_tab.py
+++ b/deluge/ui/gtkui/peers_tab.py
@@ -386,16 +386,17 @@ class PeersTab(Tab):
         response = peer_dialog.run()
         if response:
             value = txt_ip.get_text()
-            if ']' in value:
-                #ipv6
-                ip = value.split("]")[0][1:]
-                port = value.split("]")[1][1:]
-            else:
-                #ipv4
-                ip = value.split(":")[0]
-                port = value.split(":")[1]
-            if deluge.common.is_ip(ip):
-                log.debug("adding peer %s to %s", value, self.torrent_id)
-                client.core.connect_peer(self.torrent_id, ip, port)
+            if value and ':' in value:
+                if ']' in value:
+                    #ipv6
+                    ip = value.split("]")[0][1:]
+                    port = value.split("]")[1][1:]
+                else:
+                    #ipv4
+                    ip = value.split(":")[0]
+                    port = value.split(":")[1]
+                if deluge.common.is_ip(ip):
+                    log.debug("adding peer %s to %s", value, self.torrent_id)
+                    client.core.connect_peer(self.torrent_id, ip, port)
         peer_dialog.destroy()
         return True