diff --git a/resources/prosody-plugins/mod_av_moderation_component.lua b/resources/prosody-plugins/mod_av_moderation_component.lua
index 0f7b769da..7da59a0da 100644
--- a/resources/prosody-plugins/mod_av_moderation_component.lua
+++ b/resources/prosody-plugins/mod_av_moderation_component.lua
@@ -136,6 +136,7 @@ function on_message(event)
                         room.av_moderation = {};
                         room.av_moderation_actors = {};
                     end
+                    room.av_moderation[mediaType] = {};
                     room.av_moderation_actors[mediaType] = occupant.nick;
                 end
             else