diff --git a/osaca/parser/parser_x86att.py b/osaca/parser/parser_x86att.py
index b6e42af..f594d0b 100755
--- a/osaca/parser/parser_x86att.py
+++ b/osaca/parser/parser_x86att.py
@@ -34,8 +34,13 @@ class ParserX86ATT(BaseParser):
             + pp.Optional(relocation).setResultsName('relocation')
         ).setResultsName('identifier')
         # Label
+        numeric_identifier = pp.Group(
+            pp.Word(pp.nums).setResultsName('name') + pp.Optional(pp.oneOf('b f', caseless=True))
+        ).setResultsName('identifier')
         self.label = pp.Group(
-            identifier.setResultsName('name') + pp.Literal(':') + pp.Optional(self.comment)
+            (identifier | numeric_identifier).setResultsName('name')
+            + pp.Literal(':')
+            + pp.Optional(self.comment)
         ).setResultsName(self.LABEL_ID)
         # Register: pp.Regex('^%[0-9a-zA-Z]+{}{z},?')
         self.register = pp.Group(
@@ -132,7 +137,7 @@ class ParserX86ATT(BaseParser):
             pp.alphanums
         ).setResultsName('mnemonic')
         # Combine to instruction form
-        operand_first = pp.Group(self.register ^ immediate ^ memory ^ identifier)
+        operand_first = pp.Group(self.register ^ immediate ^ memory ^ identifier ^ numeric_identifier)
         operand_rest = pp.Group(self.register ^ immediate ^ memory)
         self.instruction_parser = (
             mnemonic
@@ -305,7 +310,10 @@ class ParserX86ATT(BaseParser):
     def process_label(self, label):
         """Post-process label asm line"""
         # remove duplicated 'name' level due to identifier
-        label['name'] = label['name']['name']
+        if 'name' in label['name'][0]:
+            label['name'] = label['name'][0]['name']
+        else:
+            label['name'] = label['name'][0]
         return AttrDict({self.LABEL_ID: label})
 
     def process_immediate(self, immediate):