guard PER references
diff --git a/skeletons/NativeReal.c b/skeletons/NativeReal.c
index ad6f28c..9bbb396 100644
--- a/skeletons/NativeReal.c
+++ b/skeletons/NativeReal.c
@@ -30,8 +30,13 @@
 	NativeReal_encode_der,
 	NativeReal_decode_xer,
 	NativeReal_encode_xer,
+#ifdef	ASN_DISABLE_PER_SUPPORT
+	0,
+	0,
+#else
 	NativeReal_decode_uper,
 	NativeReal_encode_uper,
+#endif	/* ASN_DISABLE_PER_SUPPORT */
 	0, /* Use generic outmost tag fetcher */
 	asn_DEF_NativeReal_tags,
 	sizeof(asn_DEF_NativeReal_tags) / sizeof(asn_DEF_NativeReal_tags[0]),