diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf
index e628e7c8d875c1fc654b550229ec0e1ba0752a30..695983a7246555910696591aaca7ed78e679de1f 100644
--- a/tools/testing/ktest/sample.conf
+++ b/tools/testing/ktest/sample.conf
@@ -1,8 +1,10 @@
 #
 # Config file for ktest.pl
 #
-# Place your customized version of this, named ktest.conf, in the
-# working directory that ktest.pl is run from.
+# Place your customized version of this, in the working directory that
+# ktest.pl is run from. By default, ktest.pl will look for a file
+# called "ktest.conf", but you can name it anything you like and specify
+# the name of your config file as the first argument of ktest.pl.
 #
 # Note, all paths must be absolute
 #