Index: main/rtp_engine.c
===================================================================
--- main/rtp_engine.c	(revision 239110)
+++ main/rtp_engine.c	(working copy)
@@ -324,6 +324,7 @@
 	instance->local_address.sin_addr = sin->sin_addr;
 	instance->remote_address.sin_family = AF_INET;
 	address.sin_addr = sin->sin_addr;
+	address.sin_family = AF_INET;
 
 	ast_debug(1, "Using engine '%s' for RTP instance '%p'\n", engine->name, instance);