diff --git a/sample/gtk-gio/Makefile.am b/sample/gtk-gio/Makefile.am
index b14a6ba31..dfb4e7272 100755
--- a/sample/gtk-gio/Makefile.am
+++ b/sample/gtk-gio/Makefile.am
@@ -5,7 +5,8 @@ DEBUGS = $(addsuffix .mdb, $(TARGETS))
 assemblies = 					\
 	$(top_builddir)/glib/glib-sharp.dll 	\
 	$(top_builddir)/gtk/gtk-sharp.dll 	\
-	$(top_builddir)/gio/gio-sharp.dll 
+	$(top_builddir)/gio/gio-sharp.dll 	\
+	$(top_builddir)/atk/atk-sharp.dll
 
 references=$(addprefix /r:, $(assemblies))