diff --git a/indra/llprimitive/llgltfmaterial.cpp b/indra/llprimitive/llgltfmaterial.cpp
index 6d23cb80399aed27958e82a585ebea24edba87db..6fbcf50482577df90f6420d297b4bf8b700eb97b 100644
--- a/indra/llprimitive/llgltfmaterial.cpp
+++ b/indra/llprimitive/llgltfmaterial.cpp
@@ -88,7 +88,7 @@ LLGLTFMaterial& LLGLTFMaterial::operator=(const LLGLTFMaterial& rhs)
     mTextureTransform = rhs.mTextureTransform;
 
     mOverrideDoubleSided = rhs.mOverrideDoubleSided;
-    mOverrideAlphaMode = rhs.mOverrideDoubleSided;
+    mOverrideAlphaMode = rhs.mOverrideAlphaMode;
 
     return *this;
 }