diff --git a/modules/programs/mbsync-accounts.nix b/modules/programs/mbsync-accounts.nix
index 9db21331a..5fe589af0 100644
--- a/modules/programs/mbsync-accounts.nix
+++ b/modules/programs/mbsync-accounts.nix
@@ -174,20 +174,6 @@ in {
       '';
     };
 
-    extraConfig.channel = mkOption {
-      type = extraConfigType;
-      default = { };
-      example = literalExample ''
-        {
-          MaxMessages = 10000;
-          MaxSize = "1m";
-        };
-      '';
-      description = ''
-        Per channel extra configuration.
-      '';
-    };
-
     extraConfig.local = mkOption {
       type = extraConfigType;
       default = { };