diff --git a/lib/midtrans_api/client.rb b/lib/midtrans_api/client.rb
index e6900a5..18dccff 100644
--- a/lib/midtrans_api/client.rb
+++ b/lib/midtrans_api/client.rb
@@ -62,6 +62,7 @@ def initialize(options = {})
                 log.filter(/(#{filter}":\s*")(.*?)(")/i, '\1[FILTERED]\3')
                 log.filter(/(#{filter}":\s*)(\d+(?:\.\d+)?|true|false)/i, '\1[FILTERED]')
                 log.filter(/(#{filter}":\s*)(\[.*?\])/i, '\1[FILTERED]')
+                log.filter(%r{(#{filter}=)([\w+-.?@:/]+)}, '\1[FILTERED]')
               end
             end
           end