diff --git a/doc/src/sgml/ref/psql-ref.sgml b/doc/src/sgml/ref/psql-ref.sgml
index 3b018df85c..ada83bf3aa 100644
--- a/doc/src/sgml/ref/psql-ref.sgml
+++ b/doc/src/sgml/ref/psql-ref.sgml
@@ -1,5 +1,5 @@
@@ -240,6 +240,17 @@ PostgreSQL documentation
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+ Do not use readline for line editing and do not use the history.
+ This can be useful to turn off tab expansion when cutting and pasting.
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