diff --git a/app/api/trading/execute/route.ts b/app/api/trading/execute/route.ts
index b81cc50..f02d72d 100644
--- a/app/api/trading/execute/route.ts
+++ b/app/api/trading/execute/route.ts
@@ -27,6 +27,7 @@ export interface ExecuteTradeRequest {
   rsi?: number
   volumeRatio?: number
   pricePosition?: number
+  indicatorVersion?: string // Pine Script version (v5, v6, etc.)
 }
 
 export interface ExecuteTradeResponse {
@@ -357,6 +358,7 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
           volumeAtEntry: body.volumeRatio,
           pricePositionAtEntry: body.pricePosition,
           signalQualityScore: qualityResult.score,
+          indicatorVersion: body.indicatorVersion || 'v5', // Default to v5 for backward compatibility
           // Phantom-specific fields
           status: 'phantom',
           isPhantom: true,
@@ -576,6 +578,7 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
         volumeAtEntry: body.volumeRatio,
         pricePositionAtEntry: body.pricePosition,
         signalQualityScore: qualityResult.score,
+        indicatorVersion: body.indicatorVersion || 'v5', // Default to v5 for backward compatibility
       })
       
       console.log(`💾 Trade saved with quality score: ${qualityResult.score}/100`)