diff --git a/skeletons/NativeInteger.h b/skeletons/NativeInteger.h
index 2345076..c57aad1 100644
--- a/skeletons/NativeInteger.h
+++ b/skeletons/NativeInteger.h
@@ -32,6 +32,8 @@
 per_type_decoder_f NativeInteger_decode_uper;
 per_type_encoder_f NativeInteger_encode_uper;
 
+#define NativeInteger_constraint  asn_generic_no_constraint
+
 #ifdef __cplusplus
 }
 #endif