diff --git a/gtk/gtkselection.c b/gtk/gtkselection.c
index c2c9d9799a..4d24c81d52 100644
--- a/gtk/gtkselection.c
+++ b/gtk/gtkselection.c
@@ -1328,8 +1328,8 @@ selection_set_compound_text (GtkSelectionData *selection_data,
       result = TRUE;
     }
   g_free (tmp);
-#elif defined GDK_WINDOWING_WIN32
-  result = FALSE; /* not needed on Win32 */
+#elif defined(GDK_WINDOWING_WIN32) || defined(GDK_WINDOWING_QUARTZ)
+  result = FALSE; /* not needed on Win32 or Quartz */
 #else
   g_warning ("%s is not implemented", G_STRFUNC);
   result = FALSE;