diff --git a/com.unity.render-pipelines.high-definition/Runtime/Material/StackLit/StackLit.hlsl b/com.unity.render-pipelines.high-definition/Runtime/Material/StackLit/StackLit.hlsl
index b21e64b2532..6042d285be2 100644
--- a/com.unity.render-pipelines.high-definition/Runtime/Material/StackLit/StackLit.hlsl
+++ b/com.unity.render-pipelines.high-definition/Runtime/Material/StackLit/StackLit.hlsl
@@ -4231,7 +4231,7 @@ IndirectLighting EvaluateBSDF_ScreenSpaceReflection(PositionInputs posInput,
         }
 
         lighting.specularReflected = ssrLighting.rgb * lerp(reflectanceFactorB, reflectanceFactorC, bsdfData.coatMask);
-        reflectionHierarchyWeight = lerp(ssrLighting.a, ssrLighting.a * reflectanceFactorC, bsdfData.coatMask);
+        reflectionHierarchyWeight = lerp(ssrLighting.a, ssrLighting.a * dot(float3(1.0, 1.0, 1.0), reflectanceFactorC), bsdfData.coatMask);
     }
     else
     {