diff --git a/src/common/backend/utils/init/postinit.cpp b/src/common/backend/utils/init/postinit.cpp
index 33bb3cfd0..80b988721 100644
--- a/src/common/backend/utils/init/postinit.cpp
+++ b/src/common/backend/utils/init/postinit.cpp
@@ -2016,6 +2016,8 @@ void PostgresInitializer::InitSession()
 
     InitSettings();
 
+    InitExtensionVariable();
+
     FinishInit();
 
     AuditUserLogin();