diff --git a/Scripts/BlendShape/Editor/PreviewFaceRenderer.cs b/Scripts/BlendShape/Editor/PreviewFaceRenderer.cs
index d78759a20..15c95c5e9 100644
--- a/Scripts/BlendShape/Editor/PreviewFaceRenderer.cs
+++ b/Scripts/BlendShape/Editor/PreviewFaceRenderer.cs
@@ -68,7 +68,7 @@ namespace VRM
 
             public FogScope()
             {
-                bool fog = RenderSettings.fog; // ... let's remember the current fog setting...
+                fog = RenderSettings.fog; // ... let's remember the current fog setting...
                 // we are technically rendering everything in the scene, so scene fog might affect it...
                 Unsupported.SetRenderSettingsUseFogNoDirty(false); // ... and then temporarily turn it off
             }