diff --git a/skeletons/NativeInteger.h b/skeletons/NativeInteger.h
index e2ce22e..4e63a83 100644
--- a/skeletons/NativeInteger.h
+++ b/skeletons/NativeInteger.h
@@ -28,6 +28,7 @@
 xer_type_decoder_f NativeInteger_decode_xer;
 xer_type_encoder_f NativeInteger_encode_xer;
 per_type_decoder_f NativeInteger_decode_uper;
+per_type_encoder_f NativeInteger_encode_uper;
 
 #ifdef __cplusplus
 }