structure comparison functions
diff --git a/skeletons/INTEGER.h b/skeletons/INTEGER.h
index e8de019..9903362 100644
--- a/skeletons/INTEGER.h
+++ b/skeletons/INTEGER.h
@@ -36,6 +36,7 @@
 
 #define INTEGER_free    ASN__PRIMITIVE_TYPE_free
 asn_struct_print_f INTEGER_print;
+asn_struct_compare_f INTEGER_compare;
 ber_type_decoder_f INTEGER_decode_ber;
 der_type_encoder_f INTEGER_encode_der;
 xer_type_decoder_f INTEGER_decode_xer;