diff --git a/drivers/net/ethernet/mellanox/mlx5/core/events.c b/drivers/net/ethernet/mellanox/mlx5/core/events.c
index 587d93ec905ffa43e49d249708a3507191e8e85f..ba9249bcfcbadfca6696c668fc1cf31bc31cf003 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/events.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/events.c
@@ -190,6 +190,8 @@ static const char *mlx5_pme_error_to_string(enum port_module_event_error_type er
 		return "High Temperature";
 	case MLX5_MODULE_EVENT_ERROR_BAD_CABLE:
 		return "Bad or shorted cable/module";
+	case MLX5_MODULE_EVENT_ERROR_PCIE_POWER_SLOT_EXCEEDED:
+		return "One or more network ports have been powered down due to insufficient/unadvertised power on the PCIe slot";
 	default:
 		return "Unknown error";
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h b/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
index af19fa61e9ef8bb112efe07e87a10f6842105c38..979970f8fa0fe31ee236ce06a1f33412a3fce1b2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/mlx5.h
@@ -63,6 +63,7 @@ enum  port_module_event_error_type {
 	MLX5_MODULE_EVENT_ERROR_UNKNOWN_IDENTIFIER       = 0x5,
 	MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE         = 0x6,
 	MLX5_MODULE_EVENT_ERROR_BAD_CABLE                = 0x7,
+	MLX5_MODULE_EVENT_ERROR_PCIE_POWER_SLOT_EXCEEDED = 0xc,
 	MLX5_MODULE_EVENT_ERROR_NUM,
 };