diff --git a/Assets/Script/SDKManager/AdjustManager/AdjustManager.cs b/Assets/Script/SDKManager/AdjustManager/AdjustManager.cs
index 4dc5bca..6780e33 100644
--- a/Assets/Script/SDKManager/AdjustManager/AdjustManager.cs
+++ b/Assets/Script/SDKManager/AdjustManager/AdjustManager.cs
@@ -160,7 +160,7 @@ public class AdjustManager : D_MonoSingleton<AdjustManager>
 
     private bool IsOrganic(string _network)
     {
-        if (_network.Equals("Organic") || _network.Equals("Untrusted Devices") || _network.Equals(""))
+        if (string.IsNullOrEmpty(_network) || _network.Equals("Organic") || _network.Equals("Untrusted Devices"))
         {
             return true;
         }