diff --git a/src/diffusers/models/unet_2d_condition_flax.py b/src/diffusers/models/unet_2d_condition_flax.py
index 1ac68e10..636a7ef9 100644
--- a/src/diffusers/models/unet_2d_condition_flax.py
+++ b/src/diffusers/models/unet_2d_condition_flax.py
@@ -1,6 +1,6 @@
-from dataclasses import dataclass
 from typing import Tuple, Union
 
+import flax
 import flax.linen as nn
 import jax
 import jax.numpy as jnp
@@ -19,7 +19,7 @@ from .unet_blocks_flax import (
 )
 
 
-@dataclass
+@flax.struct.dataclass
 class FlaxUNet2DConditionOutput(BaseOutput):
     """
     Args: