diff --git a/doc/src/sgml/ref/psql-ref.sgml b/doc/src/sgml/ref/psql-ref.sgml
index 6f16b1994b..88d6c22a91 100644
--- a/doc/src/sgml/ref/psql-ref.sgml
+++ b/doc/src/sgml/ref/psql-ref.sgml
@@ -1,5 +1,5 @@
@@ -2677,6 +2677,14 @@ $endif
+
+
+ Because psql uses libpq
+ internally, all libpq environment variables are
+ also honored by psql. For a complete list of those
+ variables, see .
+
+
@@ -2896,12 +2904,4 @@ second | four
-
- See Also
-
-
- Environment Variables ()
-
-
-