diff --git a/lib/moodle_rb/utility.rb b/lib/moodle_rb/utility.rb
index 359631e..3d55186 100644
--- a/lib/moodle_rb/utility.rb
+++ b/lib/moodle_rb/utility.rb
@@ -29,7 +29,7 @@ def key_value_query_format(hash)
 
     def check_for_errors(response)
       return unless error_response?(response)
-      raise MoodleError.new(response.parsed_response)
+      raise MoodleError.new(response.parsed_response.presence || response.response.inspect)
     end
 
     private