diff --git a/src/models/bmdashboard/buildingInventoryType.js b/src/models/bmdashboard/buildingInventoryType.js
index 71285fa24..8d2364c64 100644
--- a/src/models/bmdashboard/buildingInventoryType.js
+++ b/src/models/bmdashboard/buildingInventoryType.js
@@ -3,10 +3,10 @@ const mongoose = require('mongoose');
 const { Schema } = mongoose;
 
 const buildingInventoryType = new Schema({
-  category: String, // Consumable, Material, Tool, Equipment
-  name: String,
-  description: String,
-  unit: String, // unit of measurement
+  category: { type: String, enum: ['Consumable', 'Material', 'Tool', 'Equipment'], required: true },
+  name: { type: String, required: true },
+  description: { type: String, required: true },
+  unit: { type: String, required: true }, // unit of measurement
   imageUrl: String,
 });