diff --git a/modules/services/matrix-appservice-irc.nix b/modules/services/matrix-appservice-irc.nix
index 91c18a6..e724921 100644
--- a/modules/services/matrix-appservice-irc.nix
+++ b/modules/services/matrix-appservice-irc.nix
@@ -92,7 +92,7 @@ in
               createAlias = true;
               publish = true;
               useHomeserverDirectory = true;
-              joinRule = "invite";
+              joinRule = "public";
               aliasTemplate = "#irc_\$\$CHANNEL";
             };