diff --git a/include/wx/dataobj.h b/include/wx/dataobj.h
index d407dd5149..2caee94243 100644
--- a/include/wx/dataobj.h
+++ b/include/wx/dataobj.h
@@ -322,7 +322,7 @@ private:
 // ----------------------------------------------------------------------------
 
 #if wxUSE_UNICODE
-    #if defined(__WXGTK20__)
+    #if defined(__WXGTK20__) || defined(__WXX11__)
         #define wxNEEDS_UTF8_FOR_TEXT_DATAOBJ
     #elif defined(__WXMAC__)
         #define wxNEEDS_UTF16_FOR_TEXT_DATAOBJ
diff --git a/src/x11/dataobj.cpp b/src/x11/dataobj.cpp
index 06f650c652..ae09c0fde5 100644
--- a/src/x11/dataobj.cpp
+++ b/src/x11/dataobj.cpp
@@ -374,4 +374,14 @@ void wxBitmapDataObject::DoConvertToPng()
 #endif
 }
 
+// ----------------------------------------------------------------------------
+// wxTextDataObject
+// ----------------------------------------------------------------------------
+
+void
+wxTextDataObject::GetAllFormats(wxDataFormat *formats,
+                                wxDataObjectBase::Direction WXUNUSED(dir)) const
+{
+    *formats++ = GetPreferredFormat();
+}
 #endif // wxUSE_DATAOBJ