diff --git a/src/CatLib.Core/IO/CombineStream.cs b/src/CatLib.Core/IO/CombineStream.cs
index d67f99b..8c7bf3c 100644
--- a/src/CatLib.Core/IO/CombineStream.cs
+++ b/src/CatLib.Core/IO/CombineStream.cs
@@ -162,7 +162,7 @@ public override long Seek(long offset, SeekOrigin origin)
 
             if (newGloablPosition < 0 || newGloablPosition > Length)
             {
-                throw new ArgumentOutOfRangeException($"{nameof(offset)} must large than zero or small then {nameof(Length)}");
+                throw new ArgumentOutOfRangeException($"{nameof(offset)} : {offset} must large than zero or small then {nameof(Length)} : {Length}");
             }
 
             long localPosition = 0;