diff --git a/server/prisma/schema.prisma b/server/prisma/schema.prisma
index b0eef5d..1b83cb0 100644
--- a/server/prisma/schema.prisma
+++ b/server/prisma/schema.prisma
@@ -28,6 +28,7 @@ model Substitution {
   changedTeacher String?
   changedRoom    String?
   changedSubject String?
+  notes          String?
   removed        Boolean  @default(false)
 
   SubstitutionChange SubstitutionChange[]