diff --git a/app/api/canvas/local-edit/route.ts b/app/api/canvas/local-edit/route.ts
index 15b2f1810..cfa3ee6fb 100644
--- a/app/api/canvas/local-edit/route.ts
+++ b/app/api/canvas/local-edit/route.ts
@@ -2460,9 +2460,7 @@ export async function POST(request: NextRequest) {
           })
         : [];
     const useScaleAdjustPatchTargetDraftPrimary = Boolean(scaleAdjustPatchReference);
-    const includeScaleAdjustPatchSourceReference =
-      Boolean(scaleAdjustPatchReference) &&
-      hasScaleAdjustEnlargeTarget(regions, scalePercent);
+    const includeScaleAdjustPatchSourceReference = false;
     const prompt = isScaleAdjustOperation
       ? scaleAdjustPatchReference
         ? buildScaleAdjustPatchPrompt(