diff --git a/internal/distributed/proxy/httpserver/handler_v2.go b/internal/distributed/proxy/httpserver/handler_v2.go
index 1152e7660ef85..4678d8666f22b 100644
--- a/internal/distributed/proxy/httpserver/handler_v2.go
+++ b/internal/distributed/proxy/httpserver/handler_v2.go
@@ -142,7 +142,7 @@ func (h *HandlersV2) RegisterRoutesToV2(router gin.IRouter) {
 	// privilege group
 	router.POST(PrivilegeGroupCategory+CreateAction, timeoutMiddleware(wrapperPost(func() any { return &PrivilegeGroupReq{} }, wrapperTraceLog(h.createPrivilegeGroup))))
 	router.POST(PrivilegeGroupCategory+DropAction, timeoutMiddleware(wrapperPost(func() any { return &PrivilegeGroupReq{} }, wrapperTraceLog(h.dropPrivilegeGroup))))
-	router.POST(PrivilegeGroupCategory+ListAction, timeoutMiddleware(wrapperPost(func() any { return &PrivilegeGroupReq{} }, wrapperTraceLog(h.listPrivilegeGroups))))
+	router.POST(PrivilegeGroupCategory+ListAction, timeoutMiddleware(wrapperPost(func() any { return &DatabaseReq{} }, wrapperTraceLog(h.listPrivilegeGroups))))
 	router.POST(PrivilegeGroupCategory+AddPrivilegesToGroupAction, timeoutMiddleware(wrapperPost(func() any { return &PrivilegeGroupReq{} }, wrapperTraceLog(h.addPrivilegesToGroup))))
 	router.POST(PrivilegeGroupCategory+RemovePrivilegesFromGroupAction, timeoutMiddleware(wrapperPost(func() any { return &PrivilegeGroupReq{} }, wrapperTraceLog(h.removePrivilegesFromGroup))))