diff --git a/daemon/call_interfaces.c b/daemon/call_interfaces.c
index a3e7f9d9a..a143d7ab2 100644
--- a/daemon/call_interfaces.c
+++ b/daemon/call_interfaces.c
@@ -2353,7 +2353,7 @@ static void ng_stats_endpoint(const ng_parser_t *parser, bencode_item_t *dict, c
 	if (!ep->address.family)
 		return;
 	parser->dict_add_string(dict, "family", ep->address.family->name);
-	bencode_dictionary_add_str_dup(dict, "address", &STR(sockaddr_print_buf(&ep->address)));
+	parser->dict_add_str_dup(dict, "address", &STR(sockaddr_print_buf(&ep->address)));
 	parser->dict_add_int(dict, "port", ep->port);
 }
 
@@ -2393,7 +2393,7 @@ static void ng_stats_stream(const ng_parser_t *parser, bencode_item_t *list, con
 
 	if (ps->selected_sfd) {
 		parser->dict_add_int(dict, "local port", ps->selected_sfd->socket.local.port);
-		bencode_dictionary_add_str_dup(dict, "local address",
+		parser->dict_add_str_dup(dict, "local address",
 				&STR(sockaddr_print_buf(&ps->selected_sfd->socket.local.address)));
 		parser->dict_add_string(dict, "family", ps->selected_sfd->socket.local.address.family->name);
 	}
@@ -2457,7 +2457,7 @@ static void ng_stats_media(const ng_parser_t *parser, bencode_item_t *list, cons
 	if (m->protocol)
 		parser->dict_add_string(dict, "protocol", m->protocol->name);
 	if (rtp_pt)
-		bencode_dictionary_add_str_dup(dict, "codec", &rtp_pt->encoding_with_params);
+		parser->dict_add_str_dup(dict, "codec", &rtp_pt->encoding_with_params);
 
 	streams = parser->dict_add_list(dict, "streams");
 
@@ -3754,7 +3754,7 @@ const char *call_subscribe_request_ng(ng_parser_ctx_t *ctx) {
 	if (srms.length == 1) {
 		struct media_subscription *ms = srms.head->data;
 		struct call_monologue *source_ml = ms->monologue;
-		bencode_dictionary_add_str_dup(output, "from-tag", &source_ml->tag);
+		ctx->parser->dict_add_str_dup(output, "from-tag", &source_ml->tag);
 	}
 	bencode_item_t *tag_medias = NULL, *media_labels = NULL;
 	if (flags.siprec) {
@@ -3796,7 +3796,7 @@ const char *call_subscribe_request_ng(ng_parser_ctx_t *ctx) {
 		}
 	}
 
-	bencode_dictionary_add_str_dup(output, "to-tag", &dest_ml->tag);
+	ctx->parser->dict_add_str_dup(output, "to-tag", &dest_ml->tag);
 
 	dequeue_sdp_fragments(dest_ml);
 
diff --git a/daemon/control_ng.c b/daemon/control_ng.c
index 1752428e9..ca97107de 100644
--- a/daemon/control_ng.c
+++ b/daemon/control_ng.c
@@ -148,6 +148,7 @@ const ng_parser_t ng_parser_native = {
 	.dict_add = bencode_dictionary_add,
 	.dict_add_string = bencode_dictionary_add_string,
 	.dict_add_str = bencode_dictionary_add_str,
+	.dict_add_str_dup = bencode_dictionary_add_str_dup,
 	.dict_add_int = bencode_dictionary_add_integer,
 	.dict_add_dict = bencode_dictionary_add_dictionary,
 	.dict_add_list = bencode_dictionary_add_list,
@@ -170,6 +171,7 @@ const ng_parser_t ng_parser_json = {
 	.dict_add = bencode_dictionary_add,
 	.dict_add_string = bencode_dictionary_add_string,
 	.dict_add_str = bencode_dictionary_add_str,
+	.dict_add_str_dup = bencode_dictionary_add_str_dup,
 	.dict_add_int = bencode_dictionary_add_integer,
 	.dict_add_dict = bencode_dictionary_add_dictionary,
 	.dict_add_list = bencode_dictionary_add_list,
diff --git a/daemon/statistics.c b/daemon/statistics.c
index dd6d81f37..6890e07aa 100644
--- a/daemon/statistics.c
+++ b/daemon/statistics.c
@@ -971,10 +971,10 @@ const char *statistics_ng(ng_parser_ctx_t *ctx) {
 				ctx->parser->dict_add_int(dict, bencode_strdup(buf, m->label),
 						m->int_value);
 			else if (m->value_raw)
-				bencode_dictionary_add_str_dup(dict, bencode_strdup(buf, m->label),
+				ctx->parser->dict_add_str_dup(dict, bencode_strdup(buf, m->label),
 						&STR(m->value_raw));
 			else
-				bencode_dictionary_add_str_dup(dict, bencode_strdup(buf, m->label),
+				ctx->parser->dict_add_str_dup(dict, bencode_strdup(buf, m->label),
 						&STR(m->value_short));
 			continue;
 		}
diff --git a/include/control_ng.h b/include/control_ng.h
index b814a097f..54997d9e2 100644
--- a/include/control_ng.h
+++ b/include/control_ng.h
@@ -126,6 +126,7 @@ struct ng_parser {
 	bencode_item_t *(*dict_add)(bencode_item_t *, const char *, bencode_item_t *);
 	void (*dict_add_string)(bencode_item_t *, const char *, const char *);
 	void (*dict_add_str)(bencode_item_t *, const char *, const str *);
+	void (*dict_add_str_dup)(bencode_item_t *, const char *, const str *);
 	void (*dict_add_int)(bencode_item_t *, const char *, long long);
 	bencode_item_t *(*dict_add_dict)(bencode_item_t *, const char *);
 	bencode_item_t *(*dict_add_list)(bencode_item_t *, const char *);