diff --git a/ldebug.h b/ldebug.h
index 8d0cf76a..447b4b68 100644
--- a/ldebug.h
+++ b/ldebug.h
@@ -1,5 +1,5 @@
 /*
-** $Id: ldebug.h,v 1.8 2001/02/07 18:13:49 roberto Exp roberto $
+** $Id: ldebug.h,v 1.9 2001/02/09 18:37:33 roberto Exp roberto $
 ** Auxiliary functions from Debug Interface module
 ** See Copyright Notice in lua.h
 */
@@ -16,7 +16,7 @@ void luaG_typeerror (lua_State *L, StkId o, const char *op);
 void luaG_binerror (lua_State *L, StkId p1, int t, const char *op);
 int luaG_getline (int *lineinfo, int pc, int refline, int *refi);
 void luaG_ordererror (lua_State *L, const TObject *p1, const TObject *p2);
-int luaG_checkcode (const Proto *pt);
+int luaG_checkcode (lua_State *L, const Proto *pt);
 
 
 #endif