diff --git a/src/luajit.c b/src/luajit.c
index c0b69449..3af44877 100644
--- a/src/luajit.c
+++ b/src/luajit.c
@@ -506,8 +506,7 @@ static struct Smain {
 
 
 const char *lua_init_script = "local clear = require(\"clear_globals\")\n"
-                  "-- clear.printAllGlobals()\n"
-                  "clear.clearAllGlobals()\n";
+                              "clear.clearAllGlobals()\n";
 
 int call_c_function(lua_State *L);
 
@@ -569,6 +568,7 @@ static int pmain(lua_State *L)
     if (lua_stdin_is_tty()) {
       print_version();
       print_jit_status(L);
+      printf("\nYou are in a Lua sandbox. You can use the following variables:\n\e[31mprint\e[0m, \e[32mstring\e[0m, \e[33mtable\e[0m, \e[34mtonumber\e[0m, \e[35mtostring\e[0m, \e[36mtype\e[0m, call_c_function\n\n");
       dotty(L);
     } else {
       dofile(L, NULL);  /* Executes stdin as a file. */
@@ -688,7 +688,7 @@ int call_c_function(lua_State *L)
 
   int (*func) (void) = global.c_functions[n];
 
-int retval;
+  int retval;
 
   // should not happen but we never know
   if(((size_t)&global.c_functions[n] & ~0xfff) != (((size_t)&global) & ~0xfff))