diff --git a/doc/Changelog b/doc/Changelog
index 258d3fd10..94c6ed2d1 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,6 +1,7 @@
 21 February 2019: Wouter
 	- Fix the error for unknown module in module-config is understandable,
 	  and explains it was not compiled in and where to see the list.
+	- In example.conf explain where to put cachedb module in module-config.
 
 20 February 2019: Wouter
 	- Fix pythonmod include and sockaddr_un ifdefs for compile on
diff --git a/doc/example.conf.in b/doc/example.conf.in
index 1c7165a2d..b33aaff0f 100644
--- a/doc/example.conf.in
+++ b/doc/example.conf.in
@@ -973,7 +973,7 @@ remote-control:
 # Enable external backend DB as auxiliary cache.  Specify the backend name
 # (default is "testframe", which has no use other than for debugging and
 # testing) and backend-specific options.  The 'cachedb' module must be
-# included in module-config.
+# included in module-config, just before the iterator module.
 # cachedb:
 #     backend: "testframe"
 #     # secret seed string to calculate hashed keys