diff --git a/migrations/000.635.sql b/migrations/000.635.sql
new file mode 100644
index 0000000..37fe283
--- /dev/null
+++ b/migrations/000.635.sql
@@ -0,0 +1,18 @@
+-- Add matte-wallpaper material and drop legacy price column from product-materials
+
+-- 1. Insert the new material
+INSERT INTO "product-materials" (materialid, material)
+    VALUES (7, 'matte-wallpaper');
+
+-- 2. Add pricing rows for all existing market × segment combinations (copy from premium-wallpaper, material_id=4)
+INSERT INTO prices_wallpaper_m2 (material_id, segment_id, market_id, price, updated)
+    SELECT 7, segment_id, market_id, price, NOW()
+    FROM prices_wallpaper_m2
+    WHERE material_id = 4;
+
+-- 3. Add to product-printproducts_materials for all print products that have premium-wallpaper (material 4)
+INSERT INTO "product-printproducts_materials" (printid, materialid)
+    SELECT printid, 7
+    FROM "product-printproducts_materials"
+    WHERE materialid = 4;
+