diff --git a/snippets/product-media-gallery.liquid b/snippets/product-media-gallery.liquid
index c06562d..c6c326b 100644
--- a/snippets/product-media-gallery.liquid
+++ b/snippets/product-media-gallery.liquid
@@ -77,7 +77,7 @@
             {% endif %}
             thumbnail-alt-mobile={{ media.alt }}>
             {%- liquid
-              assign media_position = media_position | default: 0 | plus: 1
+              assign media_position = media_position | default: 1 | plus: 1
               assign lazy_load = false
               if media_position > 1
                 assign lazy_load = true