diff --git a/scripts/postprocessing_rembg.py b/scripts/postprocessing_rembg.py
index da80e86..50b3fec 100644
--- a/scripts/postprocessing_rembg.py
+++ b/scripts/postprocessing_rembg.py
@@ -45,7 +45,7 @@ class ScriptPostprocessingUpscale(scripts_postprocessing.ScriptPostprocessing):
         }
 
     def process(self, pp: scripts_postprocessing.PostprocessedImage, model, return_mask, alpha_matting, alpha_matting_foreground_threshold, alpha_matting_background_threshold, alpha_matting_erode_size):
-        if model == "None":
+        if not model or model == "None":
             return
 
         pp.image = rembg.remove(