diff --git a/swift/basic_app/basic_app/AppDelegate.swift b/swift/basic_app/basic_app/AppDelegate.swift
index 2fd4339..b5299b6 100644
--- a/swift/basic_app/basic_app/AppDelegate.swift
+++ b/swift/basic_app/basic_app/AppDelegate.swift
@@ -130,6 +130,13 @@ extension AppDelegate: DeepLinkDelegate {
             return
         }
         
+        if deepLinkObj.clickEvent.keys.contains("deep_link_sub2") {
+            let ReferrerId:String = deepLinkObj.clickEvent["deep_link_sub2"] as! String
+            NSLog("[AFSDK] AppsFlyer: Referrer ID: \(ReferrerId)")
+        } else {
+            NSLog("[AFSDK] Could not extract referrerId")
+        }        
+        
         let deepLinkStr:String = deepLinkObj.toString()
         NSLog("[AFSDK] DeepLink data is: \(deepLinkStr)")