diff --git a/deploy/k8s/kustomization.yaml b/deploy/k8s/kustomization.yaml
index 673401d..9cfa4d1 100644
--- a/deploy/k8s/kustomization.yaml
+++ b/deploy/k8s/kustomization.yaml
@@ -7,6 +7,7 @@ secretGenerator:
     files:
       - config/DATABASE_URI
       - config/TGBOT_TOKEN
+      - config/GROUP_BANNED
 images:
   - name: <Image>
     newName: ghcr.io/senseab/hangitbot
diff --git a/flake.nix b/flake.nix
index 55dd20b..d01907a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -75,14 +75,21 @@
               description = lib.mdDoc "Custom telegram api URI";
             };
 
+            groupBanned = mkOption {
+              type = types.listOf types.int;
+              default = [];
+              description = lib.mdDoc "GroupID blacklisted";
+            };
+
             extraOptions = mkOption {
               type = types.str;
               description = lib.mdDoc "Extra option for bot.";
+              default = "";
             };
           };
 
           config = let 
-            args = "${cfg.extraOptions} ${if isString cfg.tgUri then "--api-uri ${escapeShellArg cfg.tgUri}" else ""}";
+            args = "${cfg.extraOptions} ${if cfg?tgUri then "--api-uri ${escapeShellArg cfg.tgUri}" else ""} ${if cfg?groupBanned then concatStringsSep " " (lists.concatMap (group: ["-b ${group}"]) cfg.groupBanned) else ""}";
           in mkIf cfg.enable {
             systemd.services.hangitbot = {
               wantedBy = ["multi-uesr.target"];
diff --git a/src/config.rs b/src/config.rs
index 833e998..d37e88d 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -24,4 +24,8 @@ pub struct Args {
     /// Api Server URL
     #[clap(long, value_parser, env = "API_URL", default_value=DEFAULT_API_URL)]
     pub api_url: String,
+
+    /// GroupID blacklisted
+    #[clap(short = 'b', long, value_parser, env = "GROUP_BANNED", value_delimiter = ',', num_args = 1..)]
+    pub group_banned: Vec<i64>
 }
diff --git a/src/main.rs b/src/main.rs
index 92a0003..314e78c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -19,7 +19,7 @@ use teloxide::{
 };
 use utils::message_handler;
 use wd_log::{
-    log_debug_ln, log_error_ln, log_info_ln, log_panic, set_level, set_prefix, DEBUG, INFO,
+    log_debug_ln, log_error_ln, log_info_ln, log_panic, set_level, set_prefix, DEBUG, INFO, log_warn_ln,
 };
 
 #[tokio::main]
@@ -56,7 +56,11 @@ async fn main() {
         .branch(
             Update::filter_message()
                 .branch(dptree::entry().filter_command::<Commands>().endpoint(
-                    |db: Controller, bot: Bot, message: Message, cmd: Commands| async move {
+                    |db: Controller, black_list: Vec<i64>, bot: Bot, message: Message, cmd: Commands| async move {
+                        if black_list.contains(&message.chat.id.0) {
+                            log_warn_ln!("banned group dectected: {:?}", message.chat.id);
+                            return Ok(());
+                        }
                         let r = match cmd {
                             Commands::Help => help_handler(&bot, &message).await,
                             Commands::About => about_handler(&bot, &message).await,
@@ -75,8 +79,12 @@ async fn main() {
                 ))
                 .branch(
                     dptree::filter(|msg: Message| msg.chat.is_group() || msg.chat.is_supergroup())
-                        .endpoint(|db: Controller, msg: Message, me: Me| async move {
-                            let r = message_handler(&db, msg, &me).await;
+                        .endpoint(|db: Controller, message: Message, me: Me, black_list: Vec<i64>| async move {
+                            if black_list.contains(&message.chat.id.0) {
+                                log_warn_ln!("banned group dectected: {:?}", message.chat.id);
+                                return Ok(());
+                            }
+                            let r = message_handler(&db, message, &me).await;
                             match r {
                                 Ok(_) => Ok(()),
                                 Err(err) => {
@@ -99,7 +107,7 @@ async fn main() {
         ));
 
     Dispatcher::builder(bot, handler)
-        .dependencies(dptree::deps![db_controller, me])
+        .dependencies(dptree::deps![db_controller, me, args.group_banned])
         .default_handler(|upd| async move { log_debug_ln!("unhandled update: {:?}", upd) })
         .enable_ctrlc_handler()
         .build()