diff --git a/src/common/gajim.py b/src/common/gajim.py
index 1161cceae..5c48e5922 100644
--- a/src/common/gajim.py
+++ b/src/common/gajim.py
@@ -231,7 +231,7 @@ gajim_common_features = [nbxmpp.NS_BYTESTREAM, nbxmpp.NS_SI, nbxmpp.NS_FILE,
     nbxmpp.NS_SSN, nbxmpp.NS_MOOD, nbxmpp.NS_ACTIVITY, nbxmpp.NS_NICK,
     nbxmpp.NS_ROSTERX, nbxmpp.NS_SECLABEL, nbxmpp.NS_HASHES,
     nbxmpp.NS_HASHES_MD5, nbxmpp.NS_HASHES_SHA1, nbxmpp.NS_HASHES_SHA256,
-    nbxmpp.NS_HASHES_SHA512]
+    nbxmpp.NS_HASHES_SHA512, nbxmpp.NS_CONFERENCE]
 
 # Optional features gajim supports per account
 gajim_optional_features = {}