diff --git a/Recursiveness.md b/Recursiveness.md
index 27a299c..222df14 100644
--- a/Recursiveness.md
+++ b/Recursiveness.md
@@ -19,7 +19,8 @@ To check files with one of multiple extensions:
 # globstar makes ** recursive.
 # nullglob will prevent one of the extension pattens from appearing in the arg list
 # if they don't match.
-shopt -s globstar nullglob
+# dot glob will match shell scripts in hidden directories.
+shopt -s globstar nullglob dotglob
 shellcheck /path/to/scripts/**/*.{sh,bash,ksh}
 
 # POSIX