diff --git a/drivers/ieee1394/ieee1394_core.c b/drivers/ieee1394/ieee1394_core.c
index d6e3d441f833b2b98180404fe4625f83f04749a8..d2240a4a1c225747b2bbd0bbc9b5d8bc565ebc96 100644
--- a/drivers/ieee1394/ieee1394_core.c
+++ b/drivers/ieee1394/ieee1394_core.c
@@ -698,7 +698,7 @@ static size_t packet_size_to_data_size(size_t packet_size, size_t header_size,
 		ret = buffer_size;
 
 	if (unlikely(ret + header_size != packet_size))
-		HPSB_ERR("unexpected packet size %d (tcode %d), bug?",
+		HPSB_ERR("unexpected packet size %zd (tcode %d), bug?",
 			 packet_size, tcode);
 	return ret;
 }