diff --git a/ChatTwo/Util/StringUtil.cs b/ChatTwo/Util/StringUtil.cs
index 82b4aa5..b92fb62 100755
--- a/ChatTwo/Util/StringUtil.cs
+++ b/ChatTwo/Util/StringUtil.cs
@@ -4,9 +4,9 @@ namespace ChatTwo.Util;
 
 internal static class StringUtil {
     internal static byte[] ToTerminatedBytes(this string s) {
-        var unterminated = Encoding.UTF8.GetBytes(s);
-        var bytes = new byte[unterminated.Length + 1];
-        Array.Copy(unterminated, bytes, unterminated.Length);
+        var utf8 = Encoding.UTF8;
+        var bytes = new byte[utf8.GetByteCount(s) + 1];
+        utf8.GetBytes(s, 0, s.Length, bytes, 0);
         bytes[^1] = 0;
         return bytes;
     }