[Minor] Fix index in redirector registration

diff --git a/src/plugins/surbl.c b/src/plugins/surbl.c
index d3ed6da74995c3fe51c224306732992fb171087c..81496f0a9a759cbe0bfd9919a26275dfd482b3fa 100644 (file)
--- a/src/plugins/surbl.c
+++ b/src/plugins/surbl.c
@@ -1958,7 +1958,7 @@ surbl_register_redirect_handler (lua_State *L)
                luaL_unref (L, LUA_REGISTRYINDEX, surbl_module_ctx->redirector_cbid);
        }
 
-       lua_pushvalue (L, 1);
+       lua_pushvalue (L, 2);
 
        if (lua_type (L, -1) == LUA_TFUNCTION) {
                surbl_module_ctx->redirector_cbid = luaL_ref (L, LUA_REGISTRYINDEX);