diff --git a/src/Avalonia.X11/Clipboard/ClipboardReadSession.cs b/src/Avalonia.X11/Clipboard/ClipboardReadSession.cs
index f53d8fe3d4..7c83ecea40 100644
--- a/src/Avalonia.X11/Clipboard/ClipboardReadSession.cs
+++ b/src/Avalonia.X11/Clipboard/ClipboardReadSession.cs
@@ -127,6 +127,7 @@ class ClipboardReadSession : IDisposable
             Append(part);
         }
 
+        ms.Position = 0L;
         return new(null, ms, actualTypeAtom);
     }
     
@@ -150,4 +151,4 @@ class ClipboardReadSession : IDisposable
         }
         
     }
-}
\ No newline at end of file
+}