diff --git a/src/core/transform-session.ts b/src/core/transform-session.ts
index 1bde1b03..32dd4d63 100644
--- a/src/core/transform-session.ts
+++ b/src/core/transform-session.ts
@@ -455,7 +455,7 @@ function createBrushTransformTarget(document: SceneDocument, brushId: string): T
   if (brush === undefined || brush.kind !== "box") {
     return {
       target: null,
-      message: "Select a supported box brush before transforming it."
+      message: "Select a supported whitebox box before transforming it."
     };
   }