diff --git a/doc/src/sgml/brin.sgml b/doc/src/sgml/brin.sgml
index 4c5eeb875f..55b6272db6 100644
--- a/doc/src/sgml/brin.sgml
+++ b/doc/src/sgml/brin.sgml
@@ -585,7 +585,7 @@ typedef struct BrinOpcInfo
 
       <para>
        Since both key extraction of indexed values and representation of the
-       key in <acronym>GIN</acronym> are flexible, they may depend on
+       key in <acronym>BRIN</acronym> are flexible, they may depend on
        user-specified parameters.
       </para>
      </listitem>