diff --git a/src/common/backend/utils/misc/guc.cpp b/src/common/backend/utils/misc/guc.cpp
index 56602ddd6..8dd4da4d9 100644
--- a/src/common/backend/utils/misc/guc.cpp
+++ b/src/common/backend/utils/misc/guc.cpp
@@ -4031,7 +4031,7 @@ static void InitConfigureNamesInt()
             NULL},
 
         {{"local_syscache_threshold",
-             PGC_POSTMASTER,
+             PGC_SIGHUP,
              RESOURCES_MEM,
              gettext_noop("Sets the maximum threshold for cleaning cache."),
              NULL,