diff --git a/lib/code0/identities/provider/oidc.rb b/lib/code0/identities/provider/oidc.rb
index 630e24e..bb8e99d 100644
--- a/lib/code0/identities/provider/oidc.rb
+++ b/lib/code0/identities/provider/oidc.rb
@@ -21,7 +21,7 @@ def user_details_url
         end
 
         def authorization_url
-          config[:authorization_url]
+          config[:authorization_url].gsub("{client_id}", config[:client_id]).gsub("{redirect_uri}", config[:redirect_uri])
         end
 
         def create_identity(response, *)