diff --git a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs
index 2245da5b..367bc665 100644
--- a/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs
+++ b/src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7/S7Driver.cs
@@ -530,7 +530,7 @@ public sealed class S7Driver
     /// <returns>An element-typed CLR array boxed as <see cref="object"/>.</returns>
     internal static object DecodeArrayBlock(S7TagDefinition tag, S7ParsedAddress addr, byte[] block)
     {
-        var count = tag.ArrayCount is > 1 ? tag.ArrayCount.Value : 1;
+        var count = tag.ArrayCount!.Value;
         var elementBytes = ElementByteSize(addr.Size);
 
         switch (tag.DataType, addr.Size)