diff --git a/src/nhlua.c b/src/nhlua.c
index 95e5d7464..ba3834857 100644
--- a/src/nhlua.c
+++ b/src/nhlua.c
@@ -978,11 +978,8 @@ nhl_doturn(lua_State *L)
 static int
 nhl_debug_flags(lua_State *L)
 {
-    int argc = lua_gettop(L);
     int val;
 
-    int i;
-
     lcheck_param_table(L);
 
     /* disable monster generation */