--- a/doc/gutentags.txt	Thu Apr 09 21:02:25 2015 -0700
+++ b/doc/gutentags.txt	Thu Apr 09 21:14:18 2015 -0700
@@ -102,6 +102,10 @@
 known project markers), Gutentags is disabled for that buffer, and the
 following commands and remarks don't apply.
 
+If you want to force-disable Gutentags for a given project even though it does
+match one of the items in |gutentags_project_root|, create a file named
+"`.notags`" at the root of the project.
+
 The tag file that Gutentags creates and manages will be named after
 |gutentags_tagfile|, relative to the project's root directory. When Gutentags
 finds a valid project root, it will prepend the tag file's path to 'tags',