diff --git a/modules/images.py b/modules/images.py
index 0760284b..a12d252b 100644
--- a/modules/images.py
+++ b/modules/images.py
@@ -503,8 +503,6 @@ def save_image_with_geninfo(image, geninfo, filename, extension=None, existing_p
 
     image_format = Image.registered_extensions()[extension]
 
-    existing_pnginfo = existing_pnginfo or {}
-
     if extension.lower() == '.png':
         if opts.enable_pnginfo:
             pnginfo_data = PngImagePlugin.PngInfo()