diff --git a/angular.rangeSlider.js b/angular.rangeSlider.js
index 7359301..d5a6ce1 100644
--- a/angular.rangeSlider.js
+++ b/angular.rangeSlider.js
@@ -120,6 +120,7 @@
                     modelMax: '=?',
                     onHandleDown: '&', // calls optional function when handle is grabbed
                     onHandleUp: '&', // calls optional function when handle is released
+                    onHandleDrag: '&', //calls optional function when handle is dragged
                     orientation: '@', // options: horizontal | vertical | vertical left | vertical right
                     step: '@',
                     decimalPlaces: '@',
@@ -527,6 +528,10 @@
                                     // prevent default
                                     e.preventDefault();
 
+                                    if (angular.isFunction(scope.onHandleDrag)) {
+                                        scope.onHandleDrag();
+                                    }
+
                                     var currentClick = client(e),
                                         movement,
                                         proposal,