diff --git a/web/documentserver-example/ruby/app/models/service_converter.rb b/web/documentserver-example/ruby/app/models/service_converter.rb
index bdd49f60b..8800c74d9 100755
--- a/web/documentserver-example/ruby/app/models/service_converter.rb
+++ b/web/documentserver-example/ruby/app/models/service_converter.rb
@@ -165,7 +165,13 @@ def self.get_response_data(json_data)
 
       percent_element = file_result['percent'] # get the percentage value
 
-      result_percent = Integer(percent_element, 10) unless percent_element.nil?
+      result_percent = unless percent_element.nil?
+                         if percent_element.is_a?(String)
+                           Integer(percent_element, 10)
+                         else
+                           Integer(percent_element)
+                         end
+                       end
 
       result_percent = 99 if result_percent >= 100