diff --git a/lib/omniauth/strategies/slack.rb b/lib/omniauth/strategies/slack.rb
index 73befcb..fc8d2ab 100644
--- a/lib/omniauth/strategies/slack.rb
+++ b/lib/omniauth/strategies/slack.rb
@@ -7,7 +7,7 @@ module Strategies
     class Slack < OmniAuth::Strategies::OAuth2
       option :name, 'slack'
 
-      option :authorize_options, [:scope, :team]
+      option :authorize_options, [:scope, :team, :redirect_uri]
 
       option :client_options, {
         site: 'https://slack.com',