diff --git a/src/diffusers/models/unet_2d_condition.py b/src/diffusers/models/unet_2d_condition.py
index d510589404bc..4e4eaddf5dfe 100644
--- a/src/diffusers/models/unet_2d_condition.py
+++ b/src/diffusers/models/unet_2d_condition.py
@@ -223,7 +223,7 @@ def forward(
         encoder_hidden_states: torch.Tensor,
         return_dict: bool = True,
     ) -> Union[UNet2DConditionOutput, Tuple]:
-        """r
+        r"""
         Args:
             sample (`torch.FloatTensor`): (batch, channel, height, width) noisy inputs tensor
             timestep (`torch.FloatTensor` or `float` or `int`): (batch) timesteps