parser.y in lrama-0.6.6 vs parser.y in lrama-0.6.7

@@ -274,10 +274,10 @@
               token.alias_name = val[2]
               builder = val[0]
               builder.symbols << token
               result = builder
             }
-          | rule_rhs IDENTIFIER parameterizing_suffix
+          | rule_rhs symbol parameterizing_suffix
               {
                 builder = val[0]
                 builder.symbols << Lrama::Lexer::Token::InstantiateRule.new(s_value: val[2], location: @lexer.location, args: [val[1]])
                 result = builder
               }