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-rw-r--r--doc/server/admin/viz.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/server/admin/viz.txt b/doc/server/admin/viz.txt
index 17d919ffe..3556fd395 100644
--- a/doc/server/admin/viz.txt
+++ b/doc/server/admin/viz.txt
@@ -5,7 +5,8 @@
viz
===
-Produce graphviz diagrams of metadata structures.
+Produce graphviz diagrams of metadata structures. Make sure that the
+graphviz package is installed.
The following command will produce a graphviz image which includes hosts,
bundles, and a key::