diff --git a/doc/src/sgml/brin.sgml b/doc/src/sgml/brin.sgml
index ad11109775..8dcc29925b 100644
--- a/doc/src/sgml/brin.sgml
+++ b/doc/src/sgml/brin.sgml
@@ -81,7 +81,7 @@
occur. (This last trigger is disabled by default and can be enabled
with the autosummarize parameter.)
Conversely, a range can be de-summarized using the
- brin_desummarize_range(regclass, bigint) range,
+ brin_desummarize_range(regclass, bigint) function,
which is useful when the index tuple is no longer a very good
representation because the existing values have changed.