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-rw-r--r--doc/manual/advanced-topics/distributed-builds.xml1
1 files changed, 1 insertions, 0 deletions
diff --git a/doc/manual/advanced-topics/distributed-builds.xml b/doc/manual/advanced-topics/distributed-builds.xml
index 20fd6a0cfb0d..bbb573e35400 100644
--- a/doc/manual/advanced-topics/distributed-builds.xml
+++ b/doc/manual/advanced-topics/distributed-builds.xml
@@ -81,6 +81,7 @@ or a newline, e.g.
 
 <para>Each machine specification consists of the following elements,
 separated by spaces. Only the first element is required.
+To leave a field at its default, set it to <literal>-</literal>.
 
 <orderedlist>