diff --git a/doc/usage/discussion.mdwn b/doc/usage/discussion.mdwn
index c96059683..9fd6ab36e 100644
--- a/doc/usage/discussion.mdwn
+++ b/doc/usage/discussion.mdwn
@@ -1,3 +1,5 @@
 Man page does not document "account\_creation\_password". I started to add it, then noticed other configurations are not documented in the manual page either. --[[JeremyReed]]
 
 The description of "--dumpsetup" says that it dumps the current configuration. For me, it always dumps the same blank/initial/default configuration. For example, "wikiname" is always "wiki". This is after changing my setup file and running ikiwiki --setup. FWIW ...--[[KarlBerry]]
+
+> You need to use `--dumpsetup` at the same time as specifying your setup, i.e. `ikiwiki --setup input-setup-file --dumpsetup output-setup-file`, or `ikiwiki [ configuration flags on command line instead of setup file ] --dumpsetup output-setup` *— [[Jon]] 2020-06-23*