diff --git a/fs_product_multi_image/models/product_product.py b/fs_product_multi_image/models/product_product.py
index 3f10ed7289..fd87e9a7d9 100644
--- a/fs_product_multi_image/models/product_product.py
+++ b/fs_product_multi_image/models/product_product.py
@@ -50,7 +50,7 @@ def _compute_variant_image_ids(self):
                 lambda i: i._match_variant(variant)
             )
             variant_image_ids = variant_image_ids.sorted(
-                key=lambda i: (i.sequence, i.name)
+                key=lambda i: (i.sequence, i.name or "")
             )
             variant.variant_image_ids = variant_image_ids