diff --git a/lib/pleroma/web/oauth/oauth_controller.ex b/lib/pleroma/web/oauth/oauth_controller.ex
index 8fe0dde6e..5441ee0a8 100644
--- a/lib/pleroma/web/oauth/oauth_controller.ex
+++ b/lib/pleroma/web/oauth/oauth_controller.ex
@@ -49,7 +49,7 @@ def create_authorization(conn, %{
             url_params
           end
 
-        url = "#{url}#{Plug.Conn.Query.encode url_params}"
+        url = "#{url}#{Plug.Conn.Query.encode(url_params)}"
 
         redirect(conn, external: url)
       end