diff --git a/modules/txt2img.py b/modules/txt2img.py
index 7c6de2e7..0e6a89ab 100644
--- a/modules/txt2img.py
+++ b/modules/txt2img.py
@@ -29,8 +29,8 @@ def txt2img(prompt: str, negative_prompt: str, prompt_style: str, prompt_style2:
         restore_faces=restore_faces,
         tiling=tiling,
         enable_hr=enable_hr,
-        scale_latent=scale_latent,
-        denoising_strength=denoising_strength,
+        scale_latent=scale_latent if enable_hr else None,
+        denoising_strength=denoising_strength if enable_hr else None,
     )
 
     print(f"\ntxt2img: {prompt}", file=shared.progress_print_out)