diff --git a/app/server.go b/app/server.go
index 67fba7098a..ee3459a6dd 100644
--- a/app/server.go
+++ b/app/server.go
@@ -500,7 +500,9 @@ func NewServer(options ...Option) (*Server, error) {
 		pluginsEnvironment.InitPluginHealthCheckJob(*s.Config().PluginSettings.Enable && *s.Config().PluginSettings.EnableHealthCheck)
 	}
 	s.AddConfigListener(func(_, c *model.Config) {
+		s.PluginsLock.RLock()
 		pluginsEnvironment := s.PluginsEnvironment
+		s.PluginsLock.RUnlock()
 		if pluginsEnvironment != nil {
 			pluginsEnvironment.InitPluginHealthCheckJob(*s.Config().PluginSettings.Enable && *c.PluginSettings.EnableHealthCheck)
 		}