diff --git a/api/core/tools/provider/builtin/stablediffusion/tools/stable_diffusion.py b/api/core/tools/provider/builtin/stablediffusion/tools/stable_diffusion.py
index 02fc7448e0..7626048f98 100644
--- a/api/core/tools/provider/builtin/stablediffusion/tools/stable_diffusion.py
+++ b/api/core/tools/provider/builtin/stablediffusion/tools/stable_diffusion.py
@@ -188,6 +188,8 @@ class StableDiffusionTool(BuiltinTool):
 
         if lora:
             draw_options['prompt'] = f'{lora},{prompt}'
+        else:
+            draw_options['prompt'] = prompt
 
         draw_options['width'] = width
         draw_options['height'] = height