Index: parse.y
===================================================================
--- parse.y	(revision 16244)
+++ parse.y	(working copy)
@@ -5821,7 +5821,8 @@
                if (!(ruby_scope->flags & SCOPE_CLONE))
                    xfree(ruby_scope->local_tbl);
 	    }
-	    ruby_scope->local_tbl = local_tbl();
+            ruby_scope->local_vars[-1] = 0;
+            ruby_scope->local_tbl = local_tbl();
 	}
     }
     local_pop();