diff --git a/components/shader/shadervisitor.cpp b/components/shader/shadervisitor.cpp
index 612c9011d2..b0013538f0 100644
--- a/components/shader/shadervisitor.cpp
+++ b/components/shader/shadervisitor.cpp
@@ -50,6 +50,7 @@ namespace Shader
         , mAutoUseNormalMaps(false)
         , mAutoUseSpecularMaps(false)
         , mApplyLightingToEnvMaps(false)
+        , mConvertAlphaTestToAlphaToCoverage(false)
         , mTranslucentFramebuffer(false)
         , mShaderManager(shaderManager)
         , mImageManager(imageManager)