diff -ur gtk+2.0-2.20.1/gtk/gtkselection.c gtk+2.0-2.20.1-patched/gtk/gtkselection.c
--- gtk+2.0-2.20.1/gtk/gtkselection.c	2010-05-01 22:14:29.000000000 -0500
+++ gtk+2.0-2.20.1-patched/gtk/gtkselection.c	2011-09-17 10:45:37.000000000 -0500
@@ -1065,6 +1065,24 @@
   display = gtk_widget_get_display (widget);
   owner_window = gdk_selection_owner_get_for_display (display, selection);
   
+  if (selection == gdk_atom_intern("PRIMARY", TRUE)) {
+      GtkSelectionData selection_data;
+
+      selection_data.selection = selection;
+      selection_data.target = target;
+      selection_data.type = gdk_atom_intern("STRING", TRUE);
+      selection_data.format = 8;
+      selection_data.data = (unsigned char *)"";
+      selection_data.length = 0;
+      selection_data.display = display;
+
+      gtk_selection_retrieval_report(info, selection_data.type,
+              selection_data.format, selection_data.data,
+              selection_data.length, time_);
+
+      return TRUE;
+  }
+ 
   if (owner_window != NULL)
     {
       GtkWidget *owner_widget;