diff --git a/src/Forms/TimedTextProperties.cs b/src/Forms/TimedTextProperties.cs
index 66da232f5..cbc00bc11 100644
--- a/src/Forms/TimedTextProperties.cs
+++ b/src/Forms/TimedTextProperties.cs
@@ -168,7 +168,7 @@ namespace Nikse.SubtitleEdit.Forms
                 }
 
                 var desc = _xml.CreateElement("ttml", "desc", _nsmgr.LookupNamespace("ttml"));
-                desc.InnerText = textBoxTitle.Text;
+                desc.InnerText = textBoxDescription.Text;
                 metadata.AppendChild(desc);
             }