diff --git a/src/test/regress/expected/alter_operator.out b/src/test/regress/expected/alter_operator.out
index 2b996544c1c7ab6a484ca8277ce128cc12d868bd..ce8366a1397fb0b6ff3f7f2fede7a79356103287 100644
--- a/src/test/regress/expected/alter_operator.out
+++ b/src/test/regress/expected/alter_operator.out
@@ -66,11 +66,10 @@ ERROR:  operator attribute "negator" can not be changed
 -- Test permission check. Must be owner to ALTER OPERATOR.
 --
 CREATE USER regtest_alter_user;
-SET SESSION AUTHORIZATION regtest_alter_user_user;
-ERROR:  role "regtest_alter_user_user" does not exist
+SET SESSION AUTHORIZATION regtest_alter_user;
 ALTER OPERATOR === (boolean, boolean) SET (RESTRICT = NONE);
-RESET SESSION AUTHORIZATION;
+ERROR:  must be owner of operator ===
 -- Clean up
-DROP USER regression_alter_user;
-ERROR:  role "regression_alter_user" does not exist
+RESET SESSION AUTHORIZATION;
+DROP USER regtest_alter_user;
 DROP OPERATOR === (boolean, boolean);
diff --git a/src/test/regress/sql/alter_operator.sql b/src/test/regress/sql/alter_operator.sql
index 535052731a46c926acfff2484e2736d7f6b5a04c..a7e1988682fe12dcaf63191d8abe9cf7bfafb1b0 100644
--- a/src/test/regress/sql/alter_operator.sql
+++ b/src/test/regress/sql/alter_operator.sql
@@ -48,17 +48,15 @@ ALTER OPERATOR === (boolean, boolean) SET (JOIN = non_existent_func);
 ALTER OPERATOR === (boolean, boolean) SET (COMMUTATOR = !==);
 ALTER OPERATOR === (boolean, boolean) SET (NEGATOR = !==);
 
-
 --
 -- Test permission check. Must be owner to ALTER OPERATOR.
 --
 CREATE USER regtest_alter_user;
-SET SESSION AUTHORIZATION regtest_alter_user_user;
+SET SESSION AUTHORIZATION regtest_alter_user;
 
 ALTER OPERATOR === (boolean, boolean) SET (RESTRICT = NONE);
 
-RESET SESSION AUTHORIZATION;
-
 -- Clean up
-DROP USER regression_alter_user;
+RESET SESSION AUTHORIZATION;
+DROP USER regtest_alter_user;
 DROP OPERATOR === (boolean, boolean);