diff --git a/doc/src/sgml/ref/psql-ref.sgml b/doc/src/sgml/ref/psql-ref.sgml
index bc791380dae..123667868d7 100644
--- a/doc/src/sgml/ref/psql-ref.sgml
+++ b/doc/src/sgml/ref/psql-ref.sgml
@@ -1,5 +1,5 @@
@@ -221,6 +221,17 @@ 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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