diff --git a/misc/tabledrag.js b/misc/tabledrag.js
index fed674c..d45e734 100644
--- a/misc/tabledrag.js
+++ b/misc/tabledrag.js
@@ -542,6 +542,8 @@ Drupal.tableDrag.prototype.dropRow = function (event, self) {
         $(Drupal.theme('tableDragChangedWarning')).insertBefore(self.table).hide().fadeIn('slow');
         self.changed = true;
       }
+      // Allow module writers to hook into the change event:
+      $(self.table).trigger('tableDragChanged', self);
     }
 
     if (self.indentEnabled) {