Index: plugins/thunar-tpa/Makefile.am
===================================================================
--- plugins/thunar-tpa/Makefile.am	(revision 23810)
+++ plugins/thunar-tpa/Makefile.am	(working copy)
@@ -40,7 +40,7 @@
 	thunar-tpa-bindings.h
 
 thunar-tpa-bindings.h: $(srcdir)/thunar-tpa-bindings.xml Makefile
-	dbus-binding-tool --mode=glib-client $(srcdir)/thunar-tpa-bindings.xml > thunar-tpa-bindings.h
+	dbus-binding-tool --prefix=thunar_tpa_dbus --mode=glib-client $(srcdir)/thunar-tpa-bindings.xml > thunar-tpa-bindings.h
 endif
 
 desktopdir = $(datadir)/xfce4/panel-plugins