diff --git a/src/models/Staff.ts b/src/models/Staff.ts
index d114559..018512a 100644
--- a/src/models/Staff.ts
+++ b/src/models/Staff.ts
@@ -10,6 +10,7 @@ export interface StaffInterface extends Document {
   gitlab: string,
   github: string,
   bio: string,
+  extension: string,
   acknowledgements: string[],
 }
 
@@ -23,6 +24,7 @@ const Staff: Schema = new Schema({
   gitlab: String,
   github: String,
   bio: String,
+  extension: String,
   acknowledgements: Array,
 });