diff --git a/include/neuron/plugin.h b/include/neuron/plugin.h
index c7f56cc8..854b9e30 100644
--- a/include/neuron/plugin.h
+++ b/include/neuron/plugin.h
@@ -34,7 +34,7 @@ extern "C" {
 #define NEURON_PLUGIN_VER_1_0 100
 #define NEURON_PLUGIN_VER_2_0 200
 
-static volatile int64_t global_timestamp;
+extern int64_t global_timestamp;
 
 typedef struct neu_plugin_common {
     uint32_t magic;
diff --git a/src/main.c b/src/main.c
index 6f6fd12c..34a6c347 100644
--- a/src/main.c
+++ b/src/main.c
@@ -35,6 +35,8 @@ static neu_manager_t *g_manager   = NULL;
 zlog_category_t *     neuron      = NULL;
 bool                  disable_jwt = false;
 
+int64_t global_timestamp = 0;
+
 static void sig_handler(int sig)
 {
     nlog_warn("recv sig: %d", sig);