diff --git a/lib/class.js b/lib/class.js
index fb195b8..59374ff 100644
--- a/lib/class.js
+++ b/lib/class.js
@@ -181,7 +181,7 @@ function prop_copy( props, dest, result_data )
         }
     }
 
-    // should we regenerate the array of abstract methods (this must be done
+    // should we regenerate the array of abstract methods? (this must be done
     // because the length of the array remains the same after deleting elements)
     if ( abstract_regen )
     {