diff --git a/CHANGES.md b/CHANGES.md
index 3ee356991a7b..838dc23f6e86 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -19,7 +19,7 @@ Change Log
 * Fixed a bug where 3D Tilesets using the `region` bounding volume don't get transformed when the tileset's `modelMatrix` changes. [6755](https://github.com/AnalyticalGraphicsInc/cesium/pull/6755)
 * Fixed `PolygonGeometry` and `EllipseGeometry` tangent and bitangent attributes when a texture rotation is used [#6788](https://github.com/AnalyticalGraphicsInc/cesium/pull/6788)
 * Fixed an issue where tiles were missing in VR mode. [#6612](https://github.com/AnalyticalGraphicsInc/cesium/issues/6612)
-* Fixed a bug that caused eye dome lighting for point clouds to fail in Safari on macOS by removing the dependency on floating point color textures. [#6792](https://github.com/AnalyticalGraphicsInc/cesium/issues/6792)
+* Fixed a bug that caused eye dome lighting for point clouds to fail in Safari on macOS and Edge on Windows by removing the dependency on floating point color textures. [#6792](https://github.com/AnalyticalGraphicsInc/cesium/issues/6792)
 
 ### 1.47 - 2018-07-02
 
diff --git a/Source/Scene/PointCloudEyeDomeLighting.js b/Source/Scene/PointCloudEyeDomeLighting.js
index c1bd297d0a4a..a2a8de574de5 100644
--- a/Source/Scene/PointCloudEyeDomeLighting.js
+++ b/Source/Scene/PointCloudEyeDomeLighting.js
@@ -219,7 +219,6 @@ define([
 
             fs.sources.unshift('#extension GL_EXT_draw_buffers : enable \n');
             fs.sources.push(
-                'varying float v_depthOrLogDepth; \n' +
                 'void main() \n' +
                 '{ \n' +
                 '    czm_point_cloud_post_process_main(); \n' +