diff --git a/doc/todo/link_map.mdwn b/doc/todo/link_map.mdwn
index 0e896cd8e..e7cb0ca2f 100644
--- a/doc/todo/link_map.mdwn
+++ b/doc/todo/link_map.mdwn
@@ -1,4 +1,6 @@
 An idea: Use graphviz to generate a map of all the links between pages.
 (Could it be made clickable somehow?)
 
+Graphviz can output image maps. -- ChristofferSawicki
+
 This could be a [[plugin]].
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