diff --git a/vllm/model_executor/models/nemotron_nas.py b/vllm/model_executor/models/nemotron_nas.py
index 19a942a5277cc..83ef5e7e1282d 100644
--- a/vllm/model_executor/models/nemotron_nas.py
+++ b/vllm/model_executor/models/nemotron_nas.py
@@ -169,10 +169,13 @@ class DeciLMDecoderLayer(nn.Module):
             self.input_layernorm = RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
 
         if not self._is_no_op_ffn:
-            ffn_mult = block_config.ffn.ffn_mult
-            intermediate_size = _ffn_mult_to_intermediate_size(
-                ffn_mult, config.hidden_size
-            )
+            if hasattr(block_config.ffn, "ffn_mult"):
+                ffn_mult = block_config.ffn.ffn_mult
+                intermediate_size = _ffn_mult_to_intermediate_size(
+                    ffn_mult, config.hidden_size
+                )
+            else:
+                intermediate_size = block_config.ffn.intermediate_size
 
             self.mlp = LlamaMLP(
                 hidden_size=self.hidden_size,