diff --git a/src/SharpCompress/Common/SevenZip/ArchiveReader.cs b/src/SharpCompress/Common/SevenZip/ArchiveReader.cs
index 83eae537..70e55f08 100644
--- a/src/SharpCompress/Common/SevenZip/ArchiveReader.cs
+++ b/src/SharpCompress/Common/SevenZip/ArchiveReader.cs
@@ -1458,7 +1458,7 @@ internal class ArchiveReader
 #if DEBUG
             Log.WriteLine(_db._files[index].Name);
 #endif
-            if (_db._files[index].CrcDefined)
+            if (_db._files[index].Crc.HasValue)
             {
                 _stream = new CrcCheckStream(_db._files[index].Crc.Value);
             }
diff --git a/src/SharpCompress/Common/SevenZip/CFileItem.cs b/src/SharpCompress/Common/SevenZip/CFileItem.cs
index c6509ee0..efb362da 100644
--- a/src/SharpCompress/Common/SevenZip/CFileItem.cs
+++ b/src/SharpCompress/Common/SevenZip/CFileItem.cs
@@ -14,12 +14,6 @@ internal class CFileItem
     public bool HasStream { get; internal set; }
     public bool IsDir { get; internal set; }
 
-    public bool CrcDefined => Crc != null;
-
-    public bool AttribDefined => Attrib != null;
-
-    public void SetAttrib(uint attrib) => Attrib = attrib;
-
     public DateTime? CTime { get; internal set; }
     public DateTime? ATime { get; internal set; }
     public DateTime? MTime { get; internal set; }