diff --git a/contrib/hstore/hstore.sql.in b/contrib/hstore/hstore.sql.in
index 9ce52f1..0d1cea5 100644
--- a/contrib/hstore/hstore.sql.in
+++ b/contrib/hstore/hstore.sql.in
@@ -129,6 +129,12 @@ RETURNS hstore
 AS 'MODULE_PATHNAME'
 LANGUAGE C IMMUTABLE;
 
+-- For forward compatibility with PostgreSQL >= 9.0
+CREATE OR REPLACE FUNCTION hstore(text,text)
+RETURNS hstore
+AS 'MODULE_PATHNAME', 'tconvert'
+LANGUAGE C IMMUTABLE; -- not STRICT
+
 CREATE OPERATOR => (
 	LEFTARG = text,
 	RIGHTARG = text,
diff --git a/contrib/hstore/uninstall_hstore.sql b/contrib/hstore/uninstall_hstore.sql
index 78a8314..fed5fc3 100644
--- a/contrib/hstore/uninstall_hstore.sql
+++ b/contrib/hstore/uninstall_hstore.sql
@@ -26,6 +26,7 @@ DROP FUNCTION hs_concat(hstore,hstore);
 DROP FUNCTION hs_contains(hstore,hstore);
 DROP FUNCTION hs_contained(hstore,hstore);
 DROP FUNCTION tconvert(text,text);
+DROP FUNCTION hstore(text,text);
 DROP FUNCTION akeys(hstore);
 DROP FUNCTION avals(hstore);
 DROP FUNCTION skeys(hstore);
diff --git a/doc/src/sgml/hstore.sgml b/doc/src/sgml/hstore.sgml
index 1dde684..b6d551f 100644
--- a/doc/src/sgml/hstore.sgml
+++ b/doc/src/sgml/hstore.sgml
@@ -150,6 +150,14 @@
 
     <tbody>
      <row>
+      <entry><function>hstore(text, text)</function></entry>
+      <entry><type>hstore</type></entry>
+      <entry>make single-item <type>hstore</></entry>
+      <entry><literal>hstore('a', 'b')</literal></entry>
+      <entry><literal>"a"=&gt;"b"</literal></entry>
+     </row>
+
+     <row>
       <entry><function>akeys(hstore)</function></entry>
       <entry><type>text[]</type></entry>
       <entry>get <type>hstore</>'s keys as array</entry>