diff --git a/src/backend/utils/activity/pgstat.c b/src/backend/utils/activity/pgstat.c
index ffd096405e..b5b69ead2b 100644
--- a/src/backend/utils/activity/pgstat.c
+++ b/src/backend/utils/activity/pgstat.c
@@ -532,6 +532,8 @@ pgstat_initialize(void)
 	/* Set up a process-exit hook to clean up */
 	before_shmem_exit(pgstat_shutdown_hook, 0);
 
+	CreateCacheMemoryContext();
+
 #ifdef USE_ASSERT_CHECKING
 	pgstat_is_initialized = true;
 #endif