diff --git a/net/ethtool/common.c b/net/ethtool/common.c
index 030aa7984a910c3f3e6bb4d50efa4b663ccbbacd..f9dcbad84788b5417ff6ccf571be81231f863b4f 100644
--- a/net/ethtool/common.c
+++ b/net/ethtool/common.c
@@ -273,6 +273,7 @@ const struct link_mode_info link_mode_params[] = {
 	__DEFINE_LINK_MODE_PARAMS(10000, KR, Full),
 	[ETHTOOL_LINK_MODE_10000baseR_FEC_BIT] = {
 		.speed	= SPEED_10000,
+		.lanes	= 1,
 		.duplex = DUPLEX_FULL,
 	},
 	__DEFINE_LINK_MODE_PARAMS(20000, MLD2, Full),