diff --git a/modules/item/back/models/item-shelving.json b/modules/item/back/models/item-shelving.json
index 40f2a2852..5df3b0703 100644
--- a/modules/item/back/models/item-shelving.json
+++ b/modules/item/back/models/item-shelving.json
@@ -38,6 +38,9 @@
 		},
 		"userFk": {
 			"type": "number"
+		},
+		"available": {
+			"type": "number"
 		}
 	},
 	"relations": {