diff --git a/ngx_rtmp_stat_module.c b/ngx_rtmp_stat_module.c
index 9ea8995..770cd10 100644
--- a/ngx_rtmp_stat_module.c
+++ b/ngx_rtmp_stat_module.c
@@ -348,16 +348,20 @@ ngx_rtmp_stat_live(ngx_http_request_t *r, ngx_chain_t ***lll,
                     NGX_RTMP_STAT_L("</time>");
 
                     NGX_RTMP_STAT_L("<dropped>");
-                    NGX_RTMP_STAT(buf, ngx_snprintf(buf, sizeof(buf), 
-                                "%uz", ctx->ndropped) - buf);
-                    NGX_RTMP_STAT_L("</dropped>");
-
-                    NGX_RTMP_STAT_L("<avsync>");
-
+                    /*NGX_RTMP_STAT(buf, ngx_snprintf(buf, sizeof(buf), 
+                                "%uz", ctx->ndropped) - buf);*/
                     NGX_RTMP_STAT(buf, ngx_snprintf(buf, sizeof(buf), 
                                 "%uD/%uD", ctx->cs[1].dropped,
                                            ctx->cs[0].dropped) - buf);
+                    NGX_RTMP_STAT_L("</dropped>");
 
+                    NGX_RTMP_STAT_L("<avsync>");
+                    if (!lacf->interleave) {
+                        NGX_RTMP_STAT(buf, ngx_snprintf(buf, sizeof(buf), 
+                                      "%L", (int64_t) ctx->cs[1].timestamp -
+                                            (int64_t) ctx->cs[0].timestamp)
+                                           - buf);
+                    }
                     NGX_RTMP_STAT_L("</avsync>");
 
                     if (s->flashver.len) {