diff --git a/ngx_rtmp_cmd_module.h b/ngx_rtmp_cmd_module.h
index 9a24112..a419158 100644
--- a/ngx_rtmp_cmd_module.h
+++ b/ngx_rtmp_cmd_module.h
@@ -14,8 +14,8 @@
 #include "ngx_rtmp.h"
 
 
-#define NGX_RTMP_MAX_NAME           256
-#define NGX_RTMP_MAX_URL            256
+#define NGX_RTMP_MAX_NAME           2048
+#define NGX_RTMP_MAX_URL            4096
 #define NGX_RTMP_MAX_ARGS           NGX_RTMP_MAX_NAME