diff --git a/src/main/java/uk/ac/cam/cl/dtg/isaac/dos/Stage.java b/src/main/java/uk/ac/cam/cl/dtg/isaac/dos/Stage.java
index b23903cb7b..7252d975b4 100644
--- a/src/main/java/uk/ac/cam/cl/dtg/isaac/dos/Stage.java
+++ b/src/main/java/uk/ac/cam/cl/dtg/isaac/dos/Stage.java
@@ -2,6 +2,6 @@
 
 public enum Stage {
     year_7_and_8, year_9, gcse, a_level, further_a, university, scotland_national_5, scotland_higher,
-    scotland_advanced_higher, core, advanced, all
+    scotland_advanced_higher, core, advanced, post_18, all
     /* NOTE: lower case is necessary for correct JSON auto mapping */
 }