diff --git a/src/activities/activities.txt b/src/activities/activities.txt
--- a/src/activities/activities.txt
+++ b/src/activities/activities.txt
@@ -8,7 +8,9 @@
 algorithm
 align4
 align4-2players
+alphabetical_order
 alphabet-sequence
+ascending_order
 babymatch
 babyshapes
 baby_wordprocessor