diff --git a/llmfoundry/command_utils/train.py b/llmfoundry/command_utils/train.py
index 6749d3abdd..cc0ff353c5 100644
--- a/llmfoundry/command_utils/train.py
+++ b/llmfoundry/command_utils/train.py
@@ -18,7 +18,7 @@
     TraceHandler,
     cyclic_schedule,
 )
-from composer.utils import dist, get_device, reproducibility
+from composer.utils import TPConfig, dist, get_device, reproducibility
 from omegaconf import DictConfig
 from omegaconf import OmegaConf as om
 
@@ -518,10 +518,7 @@ def train(cfg: DictConfig) -> Trainer:
     if tp_config is not None:
         strategy = tp_config.pop('strategy', None)
         layer_plan = build_tp_strategies(strategy, model)
-        tp_config = {
-            'layer_plan': layer_plan,
-            'tensor_parallel_degree': tp_config['tensor_parallel_degree'],
-        }
+        tp_config = TPConfig(**tp_config, layer_plan=layer_plan)
 
     # Parallelism config
     parallelism_config = {'fsdp': fsdp_config, 'tp': tp_config}