diff --git a/skeletons/GraphicString.c b/skeletons/GraphicString.c
index caa0614..1cec7f7 100644
--- a/skeletons/GraphicString.c
+++ b/skeletons/GraphicString.c
@@ -43,6 +43,7 @@
 	asn_DEF_GraphicString_tags,
 	sizeof(asn_DEF_GraphicString_tags)
 	  / sizeof(asn_DEF_GraphicString_tags[0]),
+	0,	/* No OER visible constraints */
 	0,	/* No PER visible constraints */
 	0, 0,	/* No members */
 	0	/* No specifics */