diff --git a/api/onnx_web/prompt/compel.py b/api/onnx_web/prompt/compel.py
index c64a907e..e1dca077 100644
--- a/api/onnx_web/prompt/compel.py
+++ b/api/onnx_web/prompt/compel.py
@@ -1,5 +1,5 @@
 from types import SimpleNamespace
-from typing import Optional
+from typing import List, Optional, Union
 
 import numpy as np
 import torch
@@ -60,7 +60,7 @@ def encode_prompt_compel(
     prompt_embeds = compel(prompt)
 
     if negative_prompt is not None:
-        negative_prompt_embeds = compel(self, negative_prompt)
+        negative_prompt_embeds = compel(negative_prompt)
 
     if negative_prompt_embeds is not None:
         [prompt_embeds, negative_prompt_embeds] = (
@@ -78,12 +78,14 @@ def encode_prompt_compel(
 
 def encode_prompt_compel_sdxl(
     self: OnnxStableDiffusionPipeline,
-    prompt: str,
+    prompt: Union[str, List[str]],
     num_images_per_prompt: int,
     do_classifier_free_guidance: bool,
-    negative_prompt: Optional[str] = None,
+    negative_prompt: Optional[Union[str, list]],
     prompt_embeds: Optional[np.ndarray] = None,
     negative_prompt_embeds: Optional[np.ndarray] = None,
+    pooled_prompt_embeds: Optional[np.ndarray] = None,
+    negative_pooled_prompt_embeds: Optional[np.ndarray] = None,
     skip_clip_states: int = 0,
 ) -> np.ndarray:
     wrapped_encoder = wrap_encoder(self.text_encoder)
@@ -98,7 +100,7 @@ def encode_prompt_compel_sdxl(
     prompt_embeds, prompt_pooled = compel(prompt)
 
     if negative_prompt is not None:
-        negative_prompt_embeds, negative_pooled = compel(self, negative_prompt)
+        negative_prompt_embeds, negative_pooled = compel(negative_prompt)
 
     if negative_prompt_embeds is not None:
         [prompt_embeds, negative_prompt_embeds] = (