diff --git a/src/test/modules/test_oat_hooks/Makefile b/src/test/modules/test_oat_hooks/Makefile
index d0df9c1abb..d03ef2caf1 100644
--- a/src/test/modules/test_oat_hooks/Makefile
+++ b/src/test/modules/test_oat_hooks/Makefile
@@ -7,9 +7,6 @@ OBJS = \
 PGFILEDESC = "test_oat_hooks - example use of object access hooks"
 
 REGRESS = test_oat_hooks
-REGRESS_OPTS = --temp-config=$(top_srcdir)/src/test/modules/test_oat_hooks/test_oat_hooks.conf
-# Disabled because these tests require "shared_preload_libraries=test_oat_hooks",
-# which typical installcheck users do not have (e.g. buildfarm clients).
 NO_INSTALLCHECK = 1
 
 ifdef USE_PGXS
diff --git a/src/test/modules/test_oat_hooks/expected/test_oat_hooks.out b/src/test/modules/test_oat_hooks/expected/test_oat_hooks.out
index 2035769580..4192a2fb49 100644
--- a/src/test/modules/test_oat_hooks/expected/test_oat_hooks.out
+++ b/src/test/modules/test_oat_hooks/expected/test_oat_hooks.out
@@ -2,6 +2,7 @@
 -- object_access_hook_str.  Since the auditing GUC starts out false, we miss the
 -- initial "attempting" audit message from the ProcessUtility_hook, but we
 -- should thereafter see the audit messages
+LOAD 'test_oat_hooks';
 SET test_oat_hooks.audit = true;
 NOTICE:  in object_access_hook_str: superuser attempting alter (set) [test_oat_hooks.audit]
 NOTICE:  in object_access_hook_str: superuser finished alter (set) [test_oat_hooks.audit]
diff --git a/src/test/modules/test_oat_hooks/sql/test_oat_hooks.sql b/src/test/modules/test_oat_hooks/sql/test_oat_hooks.sql
index 5fb3a2f0ea..7c38202782 100644
--- a/src/test/modules/test_oat_hooks/sql/test_oat_hooks.sql
+++ b/src/test/modules/test_oat_hooks/sql/test_oat_hooks.sql
@@ -2,6 +2,7 @@
 -- object_access_hook_str.  Since the auditing GUC starts out false, we miss the
 -- initial "attempting" audit message from the ProcessUtility_hook, but we
 -- should thereafter see the audit messages
+LOAD 'test_oat_hooks';
 SET test_oat_hooks.audit = true;
 
 -- Create objects for use in the test
diff --git a/src/test/modules/test_oat_hooks/test_oat_hooks.c b/src/test/modules/test_oat_hooks/test_oat_hooks.c
index b1709f4d63..b50567749c 100644
--- a/src/test/modules/test_oat_hooks/test_oat_hooks.c
+++ b/src/test/modules/test_oat_hooks/test_oat_hooks.c
@@ -13,6 +13,7 @@
 
 #include "postgres.h"
 
+#include "access/parallel.h"
 #include "catalog/dependency.h"
 #include "catalog/objectaccess.h"
 #include "catalog/pg_proc.h"
@@ -68,15 +69,6 @@ void		_PG_fini(void);
 void
 _PG_init(void)
 {
-	/*
-	 * We allow to load the Object Access Type test module on single-user-mode
-	 * or shared_preload_libraries settings only.
-	 */
-	if (IsUnderPostmaster)
-		ereport(ERROR,
-				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-				 errmsg("test_oat_hooks must be loaded via shared_preload_libraries")));
-
 	/*
 	 * test_oat_hooks.deny_set_variable = (on|off)
 	 */
@@ -200,7 +192,7 @@ _PG_fini(void)
 static void
 emit_audit_message(const char *type, const char *hook, char *action, char *objName)
 {
-	if (REGRESS_audit)
+	if (REGRESS_audit && !IsParallelWorker())
 	{
 		const char *who = superuser_arg(GetUserId()) ? "superuser" : "non-superuser";
 
diff --git a/src/test/modules/test_oat_hooks/test_oat_hooks.conf b/src/test/modules/test_oat_hooks/test_oat_hooks.conf
deleted file mode 100644
index a44cbdd4a4..0000000000
--- a/src/test/modules/test_oat_hooks/test_oat_hooks.conf
+++ /dev/null
@@ -1 +0,0 @@
-shared_preload_libraries = test_oat_hooks