diff --git a/skeletons/constr_CHOICE.h b/skeletons/constr_CHOICE.h
new file mode 100644
index 0000000..70766e9
--- /dev/null
+++ b/skeletons/constr_CHOICE.h
@@ -0,0 +1,65 @@
+/*-
+ * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#ifndef	_CONSTR_CHOICE_H_
+#define	_CONSTR_CHOICE_H_
+
+#include <constr_TYPE.h>
+
+/*
+ * A single element of the CHOICE type.
+ */
+typedef struct asn1_CHOICE_element_s {
+	int memb_offset;		/* Offset of the element */
+	int optional;			/* Whether the element is optional */
+	ber_tlv_tag_t tag;		/* Outmost (most immediate) tag */
+	int tag_mode;		/* IMPLICIT/no/EXPLICIT tag at current level */
+	asn1_TYPE_descriptor_t
+		*type;			/* Member type descriptor */
+	char *name;			/* ASN.1 identifier of the element */
+} asn1_CHOICE_element_t;
+
+typedef struct asn1_CHOICE_tag2member_s {
+	ber_tlv_tag_t el_tag;	/* Outmost tag of the member */
+	int el_no;		/* Index of the associated member, base 0 */
+} asn1_CHOICE_tag2member_t;
+
+typedef struct asn1_CHOICE_specifics_s {
+	/*
+	 * Target structure description.
+	 */
+	int struct_size;	/* Size of the target structure. */
+	int ctx_offset;		/* Offset of the ber_dec_ctx_t member */
+	int pres_offset;	/* Identifier of the present member */
+	int pres_size;		/* Size of the identifier (enum) */
+
+	/*
+	 * Members of the CHOICE structure.
+	 */
+	asn1_CHOICE_element_t *elements;
+	int elements_count;
+
+	/*
+	 * Tags to members mapping table.
+	 */
+	asn1_CHOICE_tag2member_t *tag2el;
+	int tag2el_count;
+
+	/*
+	 * Extensions-related stuff.
+	 */
+	int extensible;			/* Whether CHOICE is extensible */
+} asn1_CHOICE_specifics_t;
+
+/*
+ * A set specialized functions dealing with the CHOICE type.
+ */
+asn_constr_check_f CHOICE_constraint;
+ber_type_decoder_f CHOICE_decode_ber;
+der_type_encoder_f CHOICE_encode_der;
+asn_outmost_tag_f CHOICE_outmost_tag;
+asn_struct_print_f CHOICE_print;
+asn_struct_free_f CHOICE_free;
+
+#endif	/* _CONSTR_CHOICE_H_ */