diff --git a/src/models/Project.ts b/src/models/Project.ts
index 84d580b..e83f942 100644
--- a/src/models/Project.ts
+++ b/src/models/Project.ts
@@ -17,6 +17,7 @@ export interface IProject {
     validationKey: string,
     privateKey: string,
     publicKey: string,
+    offlineRenewalDays: number,
     defaults: IProjectDefaults
 }
 
@@ -45,6 +46,10 @@ const ProjectSchema = new Schema<IProject>({
         type: String,
         required: true
     },
+    offlineRenewalDays: {
+        type: Number,
+        default: 7
+    },
     defaults: {
         type: Object,
         default: { licenseKey: "NNUN-UUNN-UNUU-NUUN", groups: [], expirationDate: new Date(0), permissions: [], maxUses: -1 },