diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index bc8598aeda7..d543f4adbf3 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -419,3 +419,4 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute to Cesiu
 - [Kirn Kim](https://github.com/squrki)
 - [Emanuele Mastaglia](https://github.com/Masty88)
 - [Connor Manning](https://github.com/connormanning)
+- [胡文康](https://github.com/XiaoHu1994)
diff --git a/packages/engine/Source/Renderer/AutomaticUniforms.js b/packages/engine/Source/Renderer/AutomaticUniforms.js
index 73382e649f7..29801f986f7 100644
--- a/packages/engine/Source/Renderer/AutomaticUniforms.js
+++ b/packages/engine/Source/Renderer/AutomaticUniforms.js
@@ -1488,11 +1488,11 @@ const AutomaticUniforms = {
    *
    * @example
    * // GLSL declaration
-   * uniform sampler2D czm_specularEnvironmentMaps;
+   * uniform samplerCube czm_specularEnvironmentMaps;
    */
   czm_specularEnvironmentMaps: new AutomaticUniform({
     size: 1,
-    datatype: WebGLConstants.SAMPLER_2D,
+    datatype: WebGLConstants.SAMPLER_CUBE,
     getValue: function (uniformState) {
       return uniformState.specularEnvironmentMaps;
     },