diff --git a/tests/risk/answer_key.py b/tests/risk/answer_key.py
index d5fb671e..e85ed42e 100644
--- a/tests/risk/answer_key.py
+++ b/tests/risk/answer_key.py
@@ -67,8 +67,8 @@ def ensure_latest_answer_key():
     The xls answer sheet is not kept in SCM, because its size is on the order
     of 20MB, and every edit would increase the repo size.
 
-    xlsl and ods have smaller outputs and could be more friendly to SCM, but:
-    - not using xlsl, because currently the xlsl that is generated by
+    xlsx and ods have smaller outputs and could be more friendly to SCM, but:
+    - not using xlsx, because currently the xlsx that is generated by
     LibreOffice is not readable by the xldr module.
     - not using ods, because of the lack of a module as facile as xldr for
     extracting the data from the ods format.