diff --git a/doc/src/sgml/release-11.sgml b/doc/src/sgml/release-11.sgml
index 9723bc2d1f..b4a5379dd6 100644
--- a/doc/src/sgml/release-11.sgml
+++ b/doc/src/sgml/release-11.sgml
@@ -2835,7 +2835,7 @@ same commits as above
 -->
 
        <para>
-        Add <link linkend="pgtrgm"><application>pgtrgm</application></link>
+        Add <link linkend="pgtrgm"><application>pg_trgm</application></link>
         function <function>strict_word_similarity()</function> to compute
         the similarity of whole words (Alexander Korotkov)
        </para>