Index: src/XMPPConnection.m
==================================================================
--- src/XMPPConnection.m
+++ src/XMPPConnection.m
@@ -1100,11 +1100,12 @@
 		}
 
 		assert(0);
 	}
 
-	if (session != nil)
+	if (session != nil && ![session elementForName: @"optional"
+					     namespace: XMPP_NS_SESSION])
 		_needsSession = true;
 
 	if (bind != nil) {
 		[self XMPP_sendResourceBind];
 		return;