diff --git a/api/models/product.py b/api/models/product.py
index 38f38f3..cbf18d2 100644
--- a/api/models/product.py
+++ b/api/models/product.py
@@ -71,6 +71,7 @@ class Material(db.Model):
         "standard-wallpaper",
         "premium-wallpaper",
         "self-adhesive-wallpaper",
+        "matte-wallpaper",
     ]
     CANVAS_MATERIALS = ["standard-canvas"]