diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index af039b6c0799d4f2e988ce91939ed388dca86375..167a8379156e11a9f1c3395000cb9fc7c3b17be5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -42,7 +42,7 @@ static void mlx5e_get_drvinfo(struct net_device *dev,
 	strlcpy(drvinfo->version, DRIVER_VERSION " (" DRIVER_RELDATE ")",
 		sizeof(drvinfo->version));
 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
-		 "%d.%d.%d",
+		 "%d.%d.%04d",
 		 fw_rev_maj(mdev), fw_rev_min(mdev), fw_rev_sub(mdev));
 	strlcpy(drvinfo->bus_info, pci_name(mdev->pdev),
 		sizeof(drvinfo->bus_info));