diff --git a/lisp/textmodes/texinfo.el b/lisp/textmodes/texinfo.el
index 98672f42b3f..24e93bf001d 100644
--- a/lisp/textmodes/texinfo.el
+++ b/lisp/textmodes/texinfo.el
@@ -347,6 +347,8 @@ Subexpression 1 is what goes into the corresponding `@end' statement.")
 (defun texinfo-flymake (report-fn &rest _)
   "Texinfo checking for Flymake.
 
+It uses either \"makeinfo\" or \"texi2any\", in that order.
+
 REPORT-FN is the callback function."
   (let ((executable (or (executable-find "makeinfo")
                         (executable-find "texi2any")))