diff --git a/app/api/canvas/local-edit/route.ts b/app/api/canvas/local-edit/route.ts
index 46b0d4f0b..44f536d3e 100644
--- a/app/api/canvas/local-edit/route.ts
+++ b/app/api/canvas/local-edit/route.ts
@@ -1423,6 +1423,7 @@ export async function POST(request: NextRequest) {
         ? buildFalScaleAdjustSystemPrompt()
         : undefined,
       falThinkingLevel: useFalScaleAdjustMockup ? "high" : undefined,
+      allowFailover: useFalScaleAdjustMockup ? false : undefined,
       imageCount: useFalScaleAdjustMockup ? 4 : 1,
       imageSize:
         typeof body.imageSize === "string" && body.imageSize.trim()