diff --git a/ngx_rtmp_cmd_module.c b/ngx_rtmp_cmd_module.c
index fc9e4f0..117ff9b 100644
--- a/ngx_rtmp_cmd_module.c
+++ b/ngx_rtmp_cmd_module.c
@@ -94,7 +94,7 @@ ngx_module_t  ngx_rtmp_cmd_module = {
 };
 
 
-static void
+void
 ngx_rtmp_cmd_fill_args(u_char name[NGX_RTMP_MAX_NAME],
         u_char args[NGX_RTMP_MAX_ARGS])
 {
diff --git a/ngx_rtmp_cmd_module.h b/ngx_rtmp_cmd_module.h
index df88d81..4a0b955 100644
--- a/ngx_rtmp_cmd_module.h
+++ b/ngx_rtmp_cmd_module.h
@@ -97,6 +97,10 @@ typedef struct {
 } ngx_rtmp_set_buflen_t;
 
 
+void ngx_rtmp_cmd_fill_args(u_char name[NGX_RTMP_MAX_NAME],
+        u_char args[NGX_RTMP_MAX_ARGS]);
+
+
 typedef ngx_int_t (*ngx_rtmp_connect_pt)(ngx_rtmp_session_t *s,
         ngx_rtmp_connect_t *v);
 typedef ngx_int_t (*ngx_rtmp_disconnect_pt)(ngx_rtmp_session_t *s);