diff --git a/Source/Core/CorridorGeometry.js b/Source/Core/CorridorGeometry.js
index be95084c17c1..40144bb74be4 100644
--- a/Source/Core/CorridorGeometry.js
+++ b/Source/Core/CorridorGeometry.js
@@ -712,7 +712,7 @@ define([
         } else {
             var computedPositions = CorridorGeometryLibrary.computePositions(params);
             attr = combine(computedPositions, vertexFormat, ellipsoid);
-            attr.attributes.position.values = new Float64Array(PolylinePipeline.scaleToGeodeticHeight(attr.attributes.position.values, height, ellipsoid, attr.attributes.position.values));
+            attr.attributes.position.values = PolylinePipeline.scaleToGeodeticHeight(attr.attributes.position.values, height, ellipsoid, attr.attributes.position.values);
         }
         var attributes = attr.attributes;
         var boundingSphere = BoundingSphere.fromVertices(attributes.position.values, undefined, 3);
diff --git a/Source/Core/CorridorOutlineGeometry.js b/Source/Core/CorridorOutlineGeometry.js
index dd714c7a5995..16d6ad6768da 100644
--- a/Source/Core/CorridorOutlineGeometry.js
+++ b/Source/Core/CorridorOutlineGeometry.js
@@ -268,7 +268,7 @@ define([
         var newPositions = new Float64Array(length * 2);
 
         positions = PolylinePipeline.scaleToGeodeticHeight(positions, height, ellipsoid, positions);
-        extrudedPositions = PolylinePipeline.scaleToGeodeticHeight(extrudedPositions, extrudedHeight, ellipsoid);
+        extrudedPositions = PolylinePipeline.scaleToGeodeticHeight(extrudedPositions, extrudedHeight, ellipsoid, extrudedPositions);
         newPositions.set(positions);
         newPositions.set(extrudedPositions, length);
         attributes.position.values = newPositions;
@@ -388,7 +388,7 @@ define([
         } else {
             var computedPositions = CorridorGeometryLibrary.computePositions(params);
             attr = combine(computedPositions, ellipsoid, params.cornerType);
-            attr.attributes.position.values = new Float64Array(PolylinePipeline.scaleToGeodeticHeight(attr.attributes.position.values, height, ellipsoid));
+            attr.attributes.position.values = PolylinePipeline.scaleToGeodeticHeight(attr.attributes.position.values, height, ellipsoid, attr.attributes.position.values);
         }
         var attributes = attr.attributes;
         var boundingSphere = BoundingSphere.fromVertices(attributes.position.values, undefined, 3);