diff --git a/src/Neo/SmartContract/Manifest/ContractPermissionDescriptor.cs b/src/Neo/SmartContract/Manifest/ContractPermissionDescriptor.cs
index a6f0cc1807..41dc7ca816 100644
--- a/src/Neo/SmartContract/Manifest/ContractPermissionDescriptor.cs
+++ b/src/Neo/SmartContract/Manifest/ContractPermissionDescriptor.cs
@@ -69,9 +69,7 @@ internal ContractPermissionDescriptor(ReadOnlySpan<byte> span)
 
         public static ContractPermissionDescriptor Create(StackItem item)
         {
-            if (item == StackItem.Null)
-                return CreateWildcard();
-            return new ContractPermissionDescriptor(item.GetSpan());
+            return item.Equals(StackItem.Null) ? CreateWildcard() : new ContractPermissionDescriptor(item.GetSpan());
         }
 
         /// <summary>