diff --git a/lib/integrations/slack/send_on_slack_service.rb b/lib/integrations/slack/send_on_slack_service.rb
index 7892ea92e..fc7ffe5ab 100644
--- a/lib/integrations/slack/send_on_slack_service.rb
+++ b/lib/integrations/slack/send_on_slack_service.rb
@@ -92,7 +92,8 @@ class Integrations::Slack::SendOnSlackService < Base::SendOnChannelService
   def send_message
     post_message if message_content.present?
     upload_file if message.attachments.any?
-  rescue Slack::Web::Api::Errors::AccountInactive, Slack::Web::Api::Errors::MissingScope, Slack::Web::Api::Errors::InvalidAuth => e
+  rescue Slack::Web::Api::Errors::AccountInactive, Slack::Web::Api::Errors::MissingScope, Slack::Web::Api::Errors::InvalidAuth,
+         Slack::Web::Api::Errors::ChannelNotFound => e
     Rails.logger.error e
     hook.prompt_reauthorization!
     hook.disable