diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
index f64b5e78519bb..75e4308ba786a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
@@ -213,7 +213,7 @@ static int arfs_add_default_rule(struct mlx5e_priv *priv,
 }
 
 #define MLX5E_ARFS_NUM_GROUPS	2
-#define MLX5E_ARFS_GROUP1_SIZE	BIT(12)
+#define MLX5E_ARFS_GROUP1_SIZE	(BIT(16) - 1)
 #define MLX5E_ARFS_GROUP2_SIZE	BIT(0)
 #define MLX5E_ARFS_TABLE_SIZE	(MLX5E_ARFS_GROUP1_SIZE +\
 				 MLX5E_ARFS_GROUP2_SIZE)