diff --git a/Source/Core/RectangleOutlineGeometry.js b/Source/Core/RectangleOutlineGeometry.js
index d36637df5b8b..58dcd8627845 100644
--- a/Source/Core/RectangleOutlineGeometry.js
+++ b/Source/Core/RectangleOutlineGeometry.js
@@ -201,7 +201,7 @@ define([
         var ellipsoid = defaultValue(options.ellipsoid, Ellipsoid.WGS84);
         var surfaceHeight = defaultValue(options.height, 0.0);
         var rotation = defaultValue(options.rotation, 0.0);
-        var extrudedHeight = defaultValue(options.extrudedHeight, surfaceHeight);
+        var extrudedHeight = options.extrudedHeight;
 
         //>>includeStart('debug', pragmas.debug);
         if (!defined(rectangle)) {
@@ -226,7 +226,7 @@ define([
      * The number of elements used to pack the object into an array.
      * @type {Number}
      */
-    RectangleOutlineGeometry.packedLength = Rectangle.packedLength + Ellipsoid.packedLength + 4;
+    RectangleOutlineGeometry.packedLength = Rectangle.packedLength + Ellipsoid.packedLength + 5;
 
     /**
      * Stores the provided instance into the provided array.
@@ -257,7 +257,8 @@ define([
         array[startingIndex++] = value._granularity;
         array[startingIndex++] = value._surfaceHeight;
         array[startingIndex++] = value._rotation;
-        array[startingIndex]   = value._extrudedHeight;
+        array[startingIndex++] = defined(value._extrudedHeight) ? 1.0 : 0.0;
+        array[startingIndex] = defaultValue(value._extrudedHeight, 0.0);
     };
 
     var scratchRectangle = new Rectangle();
@@ -296,13 +297,14 @@ define([
         var granularity = array[startingIndex++];
         var height = array[startingIndex++];
         var rotation = array[startingIndex++];
+        var hasExtrudedHeight = array[startingIndex++];
         var extrudedHeight = array[startingIndex];
 
         if (!defined(result)) {
             scratchOptions.granularity = granularity;
             scratchOptions.height = height;
             scratchOptions.rotation = rotation;
-            scratchOptions.extrudedHeight = extrudedHeight;
+            scratchOptions.extrudedHeight = hasExtrudedHeight ? extrudedHeight : undefined;
             return new RectangleOutlineGeometry(scratchOptions);
         }
 
@@ -310,7 +312,7 @@ define([
         result._ellipsoid = Ellipsoid.clone(ellipsoid, result._ellipsoid);
         result._surfaceHeight = height;
         result._rotation = rotation;
-        result._extrudedHeight = extrudedHeight;
+        result._extrudedHeight = hasExtrudedHeight ? extrudedHeight : undefined;
 
         return result;
     };
diff --git a/Specs/Core/RectangleOutlineGeometrySpec.js b/Specs/Core/RectangleOutlineGeometrySpec.js
index 19366caf43ac..fc316ebc86da 100644
--- a/Specs/Core/RectangleOutlineGeometrySpec.js
+++ b/Specs/Core/RectangleOutlineGeometrySpec.js
@@ -152,11 +152,24 @@ defineSuite([
     });
 
     var rectangle = new RectangleOutlineGeometry({
-        rectangle : new Rectangle(-2.0, -1.0, 0.0, 1.0),
-        granularity : 1.0,
-        ellipsoid : Ellipsoid.UNIT_SPHERE
+        rectangle : new Rectangle(0.1, 0.2, 0.3, 0.4),
+        ellipsoid : new Ellipsoid(5, 6, 7),
+        granularity : 8,
+        height : 9,
+        rotation : 10,
+        extrudedHeight : 11
     });
-    var packedInstance = [-2.0, -1.0, 0.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 0.0];
-    createPackableSpecs(RectangleOutlineGeometry, rectangle, packedInstance);
+    var packedInstance = [0.1, 0.2, 0.3, 0.4, 5, 6, 7, 8, 9, 10, 1, 11];
+    createPackableSpecs(RectangleOutlineGeometry, rectangle, packedInstance, 'extruded');
+
+    rectangle = new RectangleOutlineGeometry({
+        rectangle : new Rectangle(0.1, 0.2, 0.3, 0.4),
+        ellipsoid : new Ellipsoid(5, 6, 7),
+        granularity : 8,
+        height : 9,
+        rotation : 10
+    });
+    packedInstance = [0.1, 0.2, 0.3, 0.4, 5, 6, 7, 8, 9, 10, 0, 0];
+    createPackableSpecs(RectangleOutlineGeometry, rectangle, packedInstance, 'at height');
 
 });