--- a/src/event/ngx_event.c
+++ b/src/event/ngx_event.c
@@ -59,20 +59,20 @@ ngx_int_t             ngx_accept_disable
 
 #if (NGX_STAT_STUB)
 
-ngx_atomic_t   ngx_stat_accepted0;
-ngx_atomic_t  *ngx_stat_accepted = &ngx_stat_accepted0;
-ngx_atomic_t   ngx_stat_handled0;
-ngx_atomic_t  *ngx_stat_handled = &ngx_stat_handled0;
-ngx_atomic_t   ngx_stat_requests0;
-ngx_atomic_t  *ngx_stat_requests = &ngx_stat_requests0;
-ngx_atomic_t   ngx_stat_active0;
-ngx_atomic_t  *ngx_stat_active = &ngx_stat_active0;
-ngx_atomic_t   ngx_stat_reading0;
-ngx_atomic_t  *ngx_stat_reading = &ngx_stat_reading0;
-ngx_atomic_t   ngx_stat_writing0;
-ngx_atomic_t  *ngx_stat_writing = &ngx_stat_writing0;
-ngx_atomic_t   ngx_stat_waiting0;
-ngx_atomic_t  *ngx_stat_waiting = &ngx_stat_waiting0;
+static ngx_atomic_t   ngx_stat_accepted0;
+ngx_atomic_t         *ngx_stat_accepted = &ngx_stat_accepted0;
+static ngx_atomic_t   ngx_stat_handled0;
+ngx_atomic_t         *ngx_stat_handled = &ngx_stat_handled0;
+static ngx_atomic_t   ngx_stat_requests0;
+ngx_atomic_t         *ngx_stat_requests = &ngx_stat_requests0;
+static ngx_atomic_t   ngx_stat_active0;
+ngx_atomic_t         *ngx_stat_active = &ngx_stat_active0;
+static ngx_atomic_t   ngx_stat_reading0;
+ngx_atomic_t         *ngx_stat_reading = &ngx_stat_reading0;
+static ngx_atomic_t   ngx_stat_writing0;
+ngx_atomic_t         *ngx_stat_writing = &ngx_stat_writing0;
+static ngx_atomic_t   ngx_stat_waiting0;
+ngx_atomic_t         *ngx_stat_waiting = &ngx_stat_waiting0;
 
 #endif
 
@@ -165,7 +165,7 @@ static ngx_command_t  ngx_event_core_com
 };
 
 
-ngx_event_module_t  ngx_event_core_module_ctx = {
+static ngx_event_module_t  ngx_event_core_module_ctx = {
     &event_core_name,
     ngx_event_core_create_conf,            /* create configuration */
     ngx_event_core_init_conf,              /* init configuration */