diff --git a/INSTALL.adoc b/INSTALL.adoc
index 5184d6b..fb93b7d 100644
--- a/INSTALL.adoc
+++ b/INSTALL.adoc
@@ -23,3 +23,5 @@ You can also use pip to install PyYAML: `pip3 install PyYAML`.
 5. Run `./advent` to play.
 
 6. If you want to buld the documentation you will need asciidoctor.
+
+7. Running the regression tests requires batchspell
diff --git a/Makefile b/Makefile
index b0a752a..e4e31cb 100644
--- a/Makefile
+++ b/Makefile
@@ -72,11 +72,11 @@ cppcheck:
 pylint:
 	@-pylint --score=n *.py */*.py
 
-check: advent cheat pylint cppcheck
+check: advent cheat pylint cppcheck spellcheck
 	cd tests; $(MAKE) --quiet
 
 spellcheck:
-	@batchspell adventure.yaml
+	@batchspell adventure.yaml advent.adoc
 
 reflow:
 	@clang-format --style="{IndentWidth: 8, UseTab: ForIndentation}" -i $$(find . -name "*.[ch]")