diff --git a/src/aliexpress.py b/src/aliexpress.py
index 9570fb2..6281c07 100644
--- a/src/aliexpress.py
+++ b/src/aliexpress.py
@@ -62,7 +62,7 @@ def check_item(settings_item):
                     image = re.findall(image_regex, target_page_response.text)
                     if len(image)>0:
                         image_link = image[0]
-                        image_link = re.sub(r'(jpg|png)_[0-9]+x[0-9]+', "jpg_800x800", image_link) # get bigger image instead of preview
+                        image_link = re.sub(r'(jpg|png)_[0-9]+x[0-9]+', r'\1_800x800', image_link) # get bigger image instead of preview
                         break
 
                 # get currency