diff --git a/contrib/hstore_plpython/expected/hstore_plpython.out b/contrib/hstore_plpython/expected/hstore_plpython.out
index e26c72d061af638c351fe619ec0315f46c7bb3b9..62528368413fc9eb32f08cf91a30dd9f09d47281 100644
--- a/contrib/hstore_plpython/expected/hstore_plpython.out
+++ b/contrib/hstore_plpython/expected/hstore_plpython.out
@@ -6,7 +6,7 @@ LANGUAGE plpythonu
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
-i = val.items()
+i = list(val.items())
 i.sort()
 plpy.info(i)
 return len(val)
@@ -25,7 +25,7 @@ LANGUAGE plpython2u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
-i = val.items()
+i = list(val.items())
 i.sort()
 plpy.info(i)
 return len(val)
diff --git a/contrib/hstore_plpython/sql/hstore_plpython.sql b/contrib/hstore_plpython/sql/hstore_plpython.sql
index e096df42fae34b97c532f95b78718c7b76a0c172..872d8c621c03f90088248030446cef37fc852f1f 100644
--- a/contrib/hstore_plpython/sql/hstore_plpython.sql
+++ b/contrib/hstore_plpython/sql/hstore_plpython.sql
@@ -8,7 +8,7 @@ LANGUAGE plpythonu
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
-i = val.items()
+i = list(val.items())
 i.sort()
 plpy.info(i)
 return len(val)
@@ -23,7 +23,7 @@ LANGUAGE plpython2u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
-i = val.items()
+i = list(val.items())
 i.sort()
 plpy.info(i)
 return len(val)