diff --git a/skeletons/GeneralizedTime.c b/skeletons/GeneralizedTime.c
index 6934a82..79f62e8 100644
--- a/skeletons/GeneralizedTime.c
+++ b/skeletons/GeneralizedTime.c
@@ -218,8 +218,7 @@
 	
 		rv = OCTET_STRING_encode_xer_utf8(td, sptr, ilevel, flags,
 			cb, app_key);
-		asn_DEF_GeneralizedTime.free_struct(&asn_DEF_GeneralizedTime,
-			gt, 0);
+		ASN_STRUCT_FREE(asn_DEF_GeneralizedTime, gt);
 		return rv;
 	} else {
 		return OCTET_STRING_encode_xer_utf8(td, sptr, ilevel, flags,