diff --git a/src/components/app/app.ts b/src/components/app/app.ts
index dd1486e..7c1b74c 100644
--- a/src/components/app/app.ts
+++ b/src/components/app/app.ts
@@ -33,6 +33,9 @@ export interface Course
     name: string,
     teacherName: string,
 
+    letterGrade?: string,
+    numericGrade?: number,
+
     level: string,
     scaleUp: number,