diff --git a/osaca/parser/__init__.py b/osaca/parser/__init__.py
index ba43c70..f6cdb84 100644
--- a/osaca/parser/__init__.py
+++ b/osaca/parser/__init__.py
@@ -7,8 +7,10 @@ from .attr_dict import AttrDict
 from .base_parser import BaseParser
 from .parser_x86att import ParserX86ATT
 from .parser_AArch64 import ParserAArch64
+from .instruction_form import InstructionForm
+from .operand import Operand
 
-__all__ = ["AttrDict", "BaseParser", "ParserX86ATT", "ParserAArch64", "get_parser"]
+__all__ = ["Operand", "InstructionForm", "AttrDict", "BaseParser", "ParserX86ATT", "ParserAArch64", "get_parser"]
 
 
 def get_parser(isa):