diff --git a/lib/omniauth/strategies/clever.rb b/lib/omniauth/strategies/clever.rb
index 1689ef4..95ca9bf 100644
--- a/lib/omniauth/strategies/clever.rb
+++ b/lib/omniauth/strategies/clever.rb
@@ -60,7 +60,7 @@ def raw_info
 
       # Fix unknown redirect uri bug by NOT appending the query string to the callback url.
       def callback_url
-        full_host + script_name + callback_path
+        options[:redirect_uri] || (full_host + script_name + callback_path)
       end
     end
   end