diff --git a/krebs/2configs/repo-sync.nix b/krebs/2configs/repo-sync.nix
index 9b60dc552..84b7d9c0e 100644
--- a/krebs/2configs/repo-sync.nix
+++ b/krebs/2configs/repo-sync.nix
@@ -15,7 +15,7 @@ let
         post-receive = pkgs.git-hooks.irc-announce {
           nick = config.networking.hostName;
           verbose = false;
-          channel = "#krebs";
+          channel = "#xxx";
           server = "irc.r";
           branches = [ "master" ];
         };
diff --git a/krebs/3modules/announce-activation.nix b/krebs/3modules/announce-activation.nix
index 73704ae27..8f8440eb7 100644
--- a/krebs/3modules/announce-activation.nix
+++ b/krebs/3modules/announce-activation.nix
@@ -35,7 +35,7 @@ in {
     irc = {
       # TODO rename channel to target?
       channel = mkOption {
-        default = "#krebs";
+        default = "#xxx";
         type = types.str; # TODO types.irc-channel
       };
       nick = mkOption {
diff --git a/krebs/3modules/ci.nix b/krebs/3modules/ci.nix
index 49d5bbc93..adbc1ebe1 100644
--- a/krebs/3modules/ci.nix
+++ b/krebs/3modules/ci.nix
@@ -134,7 +134,7 @@ in
         enable = true;
         nick = "build|${hostname}";
         server = "irc.r";
-        channels = [ "krebs" "noise" ];
+        channels = [ "xxx" "noise" ];
         allowForce = true;
       };
       extraConfig = ''