diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 7c47977981..ae8504f941 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -871,7 +871,7 @@ $(gtk_dbus_built_sources) : Makefile.am gtkdbusinterfaces.xml
 	--interface-prefix org.Gtk. \
 	--c-namespace Gtk \
 	--generate-c-code gtkdbusgenerated \
-	gtkdbusinterfaces.xml
+	$(srcdir)/gtkdbusinterfaces.xml
 
 gtk_os_unix_c_sources = 		\
 	gtkcustompaperunixdialog.c	\