diff --git a/Gruntfile.js b/Gruntfile.js
index 923eb9e4..ea767943 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -21,7 +21,7 @@ module.exports = function(grunt) {
     'src/shapes/Circle.js', 
     'src/shapes/Ellipse.js',
     'src/shapes/Wedge.js', 
-    'src/shapes/AnnularSection.js',
+    'src/shapes/Arc.js',
     'src/shapes/Image.js', 
     'src/shapes/Text.js', 
     'src/shapes/Line.js', 
diff --git a/src/shapes/AnnularSection.js b/src/shapes/Arc.js
similarity index 62%
rename from src/shapes/AnnularSection.js
rename to src/shapes/Arc.js
index e939f0de..d4206b0f 100644
--- a/src/shapes/AnnularSection.js
+++ b/src/shapes/Arc.js
@@ -1,6 +1,6 @@
 (function() {
     /**
-     * AnnularSection constructor
+     * Arc constructor
      * @constructor
      * @augments Kinetic.Shape
      * @param {Object} config
@@ -12,8 +12,8 @@
      * @@shapeParams
      * @@nodeParams
      * @example
-     * // draw a AnnularSection that's pointing downwards<br>
-     * var AnnularSection = new Kinetic.AnnularSection({<br>
+     * // draw a Arc that's pointing downwards<br>
+     * var Arc = new Kinetic.Arc({<br>
      *   innerRadius: 40,<br>
      *   outerRadius: 80,<br>
      *   fill: 'red',<br>
@@ -23,15 +23,15 @@
      *   rotationDeg: -120<br>
      * });
      */
-    Kinetic.AnnularSection = function(config) {
+    Kinetic.Arc = function(config) {
         this.___init(config);
     };
 
-    Kinetic.AnnularSection.prototype = {
+    Kinetic.Arc.prototype = {
         ___init: function(config) {
             // call super constructor
             Kinetic.Shape.call(this, config);
-            this.className = 'AnnularSection';
+            this.className = 'Arc';
         },
         drawFunc: function(context) {
             context.beginPath();
@@ -41,10 +41,10 @@
             context.fillStrokeShape(this);
         }
     };
-    Kinetic.Util.extend(Kinetic.AnnularSection, Kinetic.Shape);
+    Kinetic.Util.extend(Kinetic.Arc, Kinetic.Shape);
 
     // add getters setters
-    Kinetic.Factory.addGetterSetter(Kinetic.AnnularSection, 'innerRadius', function() {
+    Kinetic.Factory.addGetterSetter(Kinetic.Arc, 'innerRadius', function() {
         return 0;
     });
 
@@ -52,7 +52,7 @@
      * set innerRadius
      * @name setInnerRadius
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @param {Number} innerRadius
      */
 
@@ -60,11 +60,11 @@
      * get innerRadius
      * @name getInnerRadius
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @returns {Number}
      */
      
-    Kinetic.Factory.addGetterSetter(Kinetic.AnnularSection, 'outerRadius', function() {
+    Kinetic.Factory.addGetterSetter(Kinetic.Arc, 'outerRadius', function() {
         return 0;
     });
 
@@ -72,7 +72,7 @@
      * set outerRadius
      * @name setOuterRadius
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @param {Number} innerRadius
      */
 
@@ -80,17 +80,17 @@
      * get outerRadius
      * @name getOuterRadius
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @returns {Number}
      */
 
-    Kinetic.Factory.addRotationGetterSetter(Kinetic.AnnularSection, 'angle', 0);
+    Kinetic.Factory.addRotationGetterSetter(Kinetic.Arc, 'angle', 0);
 
     /**
      * set angle
      * @name setAngle
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @param {Number} angle
      */
 
@@ -98,7 +98,7 @@
      * set angle in degrees
      * @name setAngleDeg
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @param {Number} angleDeg
      */
 
@@ -106,7 +106,7 @@
      * get angle
      * @name getAngle
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @returns {Number}
      */
 
@@ -114,18 +114,18 @@
      * get angle in degrees
      * @name getAngleDeg
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @returns {Number}
      */
 
-    Kinetic.Factory.addGetterSetter(Kinetic.AnnularSection, 'clockwise', false);
+    Kinetic.Factory.addGetterSetter(Kinetic.Arc, 'clockwise', false);
 
     /**
-     * set clockwise draw direction.  If set to true, the AnnularSection will be drawn clockwise
-     *  If set to false, the AnnularSection will be drawn anti-clockwise.  The default is false.
+     * set clockwise draw direction.  If set to true, the Arc will be drawn clockwise
+     *  If set to false, the Arc will be drawn anti-clockwise.  The default is false.
      * @name setClockwise
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @param {Boolean} clockwise
      */
 
@@ -133,7 +133,7 @@
      * get clockwise
      * @name getClockwise
      * @method
-     * @memberof Kinetic.AnnularSection.prototype
+     * @memberof Kinetic.Arc.prototype
      * @returns {Boolean}
      */
 })();
diff --git a/test/runner.html b/test/runner.html
index 53ef47fb..f1e420dc 100644
--- a/test/runner.html
+++ b/test/runner.html
@@ -63,7 +63,7 @@
     <script src="unit/shapes/Spline-test.js"></script>
     <script src="unit/shapes/Sprite-test.js"></script>
     <script src="unit/shapes/Wedge-test.js"></script>
-    <script src="unit/shapes/AnnularSection-test.js"></script>
+    <script src="unit/shapes/Arc-test.js"></script>
 
     <!-- extensions -->
     <script src="unit/Animation-test.js"></script>
diff --git a/test/unit/shapes/AnnularSection-test.js b/test/unit/shapes/Arc-test.js
similarity index 74%
rename from test/unit/shapes/AnnularSection-test.js
rename to test/unit/shapes/Arc-test.js
index abdb4277..a237a96d 100644
--- a/test/unit/shapes/AnnularSection-test.js
+++ b/test/unit/shapes/Arc-test.js
@@ -1,9 +1,9 @@
 suite('AnnularSection', function() {
     // ======================================================
-    test('add annular section', function() {
+    test('add arc', function() {
         var stage = addStage();
         var layer = new Kinetic.Layer();
-        var annularsection = new Kinetic.AnnularSection({
+        var arc = new Kinetic.Arc({
             x: 100,
             y: 100,
             innerRadius: 50,
@@ -12,14 +12,14 @@ suite('AnnularSection', function() {
             fill: 'green',
             stroke: 'black',
             strokeWidth: 4,
-            name: 'myAnnularSection',
+            name: 'myArc',
             draggable: true
         });
 
-        layer.add(annularsection);
+        layer.add(arc);
         stage.add(layer);
 
-        assert.equal(annularsection.getClassName(), 'AnnularSection');
+        assert.equal(arc.getClassName(), 'Arc');
 
         var trace = layer.getContext().getTrace();
         //console.log(trace);
@@ -30,7 +30,7 @@ suite('AnnularSection', function() {
     test('set annular section angle using degrees', function() {
         var stage = addStage();
         var layer = new Kinetic.Layer();
-        var annularsection = new Kinetic.AnnularSection({
+        var arc = new Kinetic.Arc({
             x: 100,
             y: 100,
             innerRadius: 50,
@@ -39,14 +39,14 @@ suite('AnnularSection', function() {
             fill: 'green',
             stroke: 'black',
             strokeWidth: 4,
-            name: 'myAnnularSection',
+            name: 'myArc',
             draggable: true,
             lineJoin: 'round'
         });
 
-        layer.add(annularsection);
+        layer.add(arc);
         stage.add(layer);
 
-        assert.equal(annularsection.getAngle(), Math.PI / 2);
+        assert.equal(arc.getAngle(), Math.PI / 2);
     });
 });
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