diff --git a/skeletons/BMPString.c b/skeletons/BMPString.c
index b6348c1..ce8874b 100644
--- a/skeletons/BMPString.c
+++ b/skeletons/BMPString.c
@@ -33,8 +33,13 @@
 	OCTET_STRING_encode_der,
 	BMPString_decode_xer,		/* Convert from UTF-8 */
 	BMPString_encode_xer,		/* Convert to UTF-8 */
+#ifdef	ASN_DISABLE_PER_SUPPORT
+	0,
+	0,
+#else
 	OCTET_STRING_decode_uper,
 	OCTET_STRING_encode_uper,
+#endif	/* ASN_DISABLE_PER_SUPPORT */
 	0, /* Use generic outmost tag fetcher */
 	asn_DEF_BMPString_tags,
 	sizeof(asn_DEF_BMPString_tags)