diff --git a/ngx_rtmp_exec_module.c b/ngx_rtmp_exec_module.c
index 1fcc712..7d1b689 100644
--- a/ngx_rtmp_exec_module.c
+++ b/ngx_rtmp_exec_module.c
@@ -529,6 +529,7 @@ ngx_rtmp_exec_merge_app_conf(ngx_conf_t *cf, void *parent, void *child)
 
         if (conf->conf[n].nelts) {
             conf->active = 1;
+            prev->active = 1;
         }
     }