--- base_events.py.orig	2016-05-26 20:27:28.231984455 +0200
+++ base_events.py	2016-05-27 12:47:52.160834825 +0200
@@ -156,10 +156,12 @@
     if hasattr(socket, 'AF_UNIX') and sock.family == socket.AF_UNIX:
         return
 
-    host, port = address[:2]
-    if _ipaddr_info(host, port, sock.family, sock.type, sock.proto) is None:
-        raise ValueError("address must be resolved (IP address),"
-                         " got host %r" % host)
+    ip_afs = { socket.AF_UNSPEC, socket.AF_INET, socket.AF_INET6 }
+    if sock.family in ip_afs:
+        host, port = address[:2]
+        if _ipaddr_info(host, port, sock.family, sock.type, sock.proto) is None:
+            raise ValueError("address must be resolved (IP address),"
+                            " got host %r" % host)
 
 
 def _run_until_complete_cb(fut):