diff --git a/skeletons/asn_codecs_prim.c b/skeletons/asn_codecs_prim.c
index 4c66f39..b599bdf 100644
--- a/skeletons/asn_codecs_prim.c
+++ b/skeletons/asn_codecs_prim.c
@@ -119,7 +119,8 @@
 	}
 
 	erval.encoded += st->size;
-
+	erval.structure_ptr = 0;
+	erval.failed_type = 0;
 	return erval;
 }