diff --git a/nnunetv2/utilities/plans_handling/plans_handler.py b/nnunetv2/utilities/plans_handling/plans_handler.py
index 11b76dfcb..eab65885a 100644
--- a/nnunetv2/utilities/plans_handling/plans_handler.py
+++ b/nnunetv2/utilities/plans_handling/plans_handler.py
@@ -54,6 +54,8 @@ def __init__(self, configuration_dict: dict):
             conv_op = convert_dim_to_conv_op(dim)
             instnorm = get_matching_instancenorm(dimension=dim)
 
+            convs_or_blocks = "n_conv_per_stage" if unet_class_name == "PlainConvUNet" else "n_blocks_per_stage"
+
             arch_dict = {
                 'network_class_name': network_class_name,
                 'arch_kwargs': {
@@ -64,7 +66,7 @@ def __init__(self, configuration_dict: dict):
                     "conv_op": conv_op.__module__ + '.' + conv_op.__name__,
                     "kernel_sizes": deepcopy(self.configuration["conv_kernel_sizes"]),
                     "strides": deepcopy(self.configuration["pool_op_kernel_sizes"]),
-                    "n_conv_per_stage": deepcopy(self.configuration["n_conv_per_stage_encoder"]),
+                    convs_or_blocks: deepcopy(self.configuration["n_conv_per_stage_encoder"]),
                     "n_conv_per_stage_decoder": deepcopy(self.configuration["n_conv_per_stage_decoder"]),
                     "conv_bias": True,
                     "norm_op": instnorm.__module__ + '.' + instnorm.__name__,