diff --git a/src/ifd/ifdhandler.c b/src/ifd/ifdhandler.c
index 12686c9..ebd1b53 100644
--- a/src/ifd/ifdhandler.c
+++ b/src/ifd/ifdhandler.c
@@ -236,7 +236,7 @@ static void ifdhandler_run(ifd_reader_t * reader)
 		sock->fd = -1;
 	}
 	else {
-		sock->fd = ifd_get_eventfd(reader, &sock->events);
+		sock->fd = ifd_get_eventfd(reader, (short int *)&sock->events);
 	}
 	if (sock->fd == -1) {
 		ifd_debug(1, "events inactive for reader %s", reader->name);
diff --git a/src/ifd/process.c b/src/ifd/process.c
index 07c839c..cc9d60a 100644
--- a/src/ifd/process.c
+++ b/src/ifd/process.c
@@ -366,7 +366,7 @@ static int do_verify(ifd_reader_t * reader, int unit, ct_tlv_parser_t * args,
 	ct_tlv_get_int(args, CT_TAG_TIMEOUT, &timeout);
 	if (ct_tlv_get_string(args, CT_TAG_MESSAGE, msgbuf, sizeof(msgbuf)) > 0)
 		message = msgbuf;
-	if (!ct_tlv_get_opaque(args, CT_TAG_PIN_DATA, &data, &data_len))
+	if (!ct_tlv_get_opaque(args, CT_TAG_PIN_DATA, &data, (size_t *)&data_len))
 		return IFD_ERROR_MISSING_ARG;
 
 	rc = ifd_card_perform_verify(reader, unit, timeout, message,