diff --git a/ngx_rtmp_live_module.c b/ngx_rtmp_live_module.c
index 8dba5b1..a7bfece 100644
--- a/ngx_rtmp_live_module.c
+++ b/ngx_rtmp_live_module.c
@@ -47,9 +47,9 @@ static ngx_command_t  ngx_rtmp_live_commands[] = {
 
     { ngx_string("buffer"),
       NGX_RTMP_MAIN_CONF|NGX_RTMP_SRV_CONF|NGX_RTMP_APP_CONF|NGX_CONF_TAKE1,
-      ngx_conf_set_msec_slot,
+      ngx_conf_set_flag_slot,
       NGX_RTMP_APP_CONF_OFFSET,
-      offsetof(ngx_rtmp_live_app_conf_t, buflen),
+      offsetof(ngx_rtmp_live_app_conf_t, buffer),
       NULL },
 
     { ngx_string("sync"),
@@ -152,7 +152,7 @@ ngx_rtmp_live_create_app_conf(ngx_conf_t *cf)
 
     lacf->live = NGX_CONF_UNSET;
     lacf->nbuckets = NGX_CONF_UNSET;
-    lacf->buflen = NGX_CONF_UNSET_MSEC;
+    lacf->buffer = NGX_CONF_UNSET_MSEC;
     lacf->sync = NGX_CONF_UNSET_MSEC;
     lacf->idle_timeout = NGX_CONF_UNSET_MSEC;
     lacf->interleave = NGX_CONF_UNSET;
@@ -174,7 +174,7 @@ ngx_rtmp_live_merge_app_conf(ngx_conf_t *cf, void *parent, void *child)
 
     ngx_conf_merge_value(conf->live, prev->live, 0);
     ngx_conf_merge_value(conf->nbuckets, prev->nbuckets, 1024);
-    ngx_conf_merge_msec_value(conf->buflen, prev->buflen, 0);
+    ngx_conf_merge_value(conf->buffer, prev->buffer, 0);
     ngx_conf_merge_msec_value(conf->sync, prev->sync, 300);
     ngx_conf_merge_msec_value(conf->idle_timeout, prev->idle_timeout, 0);
     ngx_conf_merge_value(conf->interleave, prev->interleave, 0);
@@ -553,7 +553,7 @@ ngx_rtmp_live_join(ngx_rtmp_session_t *s, u_char *name, unsigned publisher)
 
     (*stream)->ctx = ctx;
 
-    if (lacf->buflen) {
+    if (lacf->buffer) {
         s->out_buffer = 1;
     }
 
diff --git a/ngx_rtmp_live_module.h b/ngx_rtmp_live_module.h
index 1eb59d4..2558ed5 100644
--- a/ngx_rtmp_live_module.h
+++ b/ngx_rtmp_live_module.h
@@ -72,7 +72,7 @@ typedef struct {
     ngx_flag_t                          publish_notify;
     ngx_flag_t                          play_restart;
     ngx_flag_t                          idle_streams;
-    ngx_msec_t                          buflen;
+    ngx_flag_t                          buffer;
     ngx_pool_t                         *pool;
     ngx_rtmp_live_stream_t             *free_streams;
 } ngx_rtmp_live_app_conf_t;