diff --git a/osaca/frontend.py b/osaca/frontend.py
index 41e9311..e0f517f 100755
--- a/osaca/frontend.py
+++ b/osaca/frontend.py
@@ -76,7 +76,7 @@ class Frontend(object):
                 self._get_flag_symbols(instruction_form['flags'])
                 if instruction_form['instruction'] is not None
                 else ' ',
-                instruction_form['line'].strip(),
+                instruction_form['line'].strip().replace('\t', ' '),
             )
             line = line if show_lineno else col_sep + col_sep.join(line.split(col_sep)[1:])
             if show_cmnts is False and self._is_comment(instruction_form):
@@ -138,7 +138,7 @@ class Frontend(object):
                 separator,
                 sum([instr_form['latency_lcd'] for instr_form in dep_dict[dep]['dependencies']]),
                 separator,
-                dep_dict[dep]['root']['line'],
+                dep_dict[dep]['root']['line'].strip(),
                 separator,
                 [node['line_number'] for node in dep_dict[dep]['dependencies']],
             )
@@ -246,7 +246,7 @@ class Frontend(object):
                 self._get_flag_symbols(instruction_form['flags'])
                 if instruction_form['instruction'] is not None
                 else ' ',
-                instruction_form['line'].strip(),
+                instruction_form['line'].strip().replace('\t', ' '),
             )
         s += '\n'
         # check for unknown instructions and throw warning if called without --ignore-unknown
diff --git a/osaca/parser/parser_AArch64.py b/osaca/parser/parser_AArch64.py
index 5456997..73c4c9e 100755
--- a/osaca/parser/parser_AArch64.py
+++ b/osaca/parser/parser_AArch64.py
@@ -218,7 +218,7 @@ class ParserAArch64(BaseParser):
                 self.DIRECTIVE_ID: None,
                 self.COMMENT_ID: None,
                 self.LABEL_ID: None,
-                'line': line.strip().replace('\t','  '),
+                'line': line,
                 'line_number': line_number,
             }
         )
diff --git a/osaca/parser/parser_x86att.py b/osaca/parser/parser_x86att.py
index ecdee66..e80f278 100755
--- a/osaca/parser/parser_x86att.py
+++ b/osaca/parser/parser_x86att.py
@@ -184,7 +184,7 @@ class ParserX86ATT(BaseParser):
                 self.DIRECTIVE_ID: None,
                 self.COMMENT_ID: None,
                 self.LABEL_ID: None,
-                'line': line.strip(),
+                'line': line,
                 'line_number': line_number,
             }
         )
diff --git a/tests/test_parser_AArch64.py b/tests/test_parser_AArch64.py
index ee1fbff..0c7d713 100755
--- a/tests/test_parser_AArch64.py
+++ b/tests/test_parser_AArch64.py
@@ -146,8 +146,8 @@ class TestParserAArch64(unittest.TestCase):
     def test_parse_line(self):
         line_comment = '// -- Begin  main'
         line_label = '.LBB0_1:              // =>This Inner Loop Header: Depth=1'
-        line_directive = '\t.cfi_def_cfa w29, -16'
-        line_instruction = '\tldr s0, [x11, w10, sxtw #2]    // = <<2'
+        line_directive = '.cfi_def_cfa w29, -16'
+        line_instruction = 'ldr s0, [x11, w10, sxtw #2]    // = <<2'
         line_prefetch = 'prfm    pldl1keep, [x26, #2048] //HPL'
         line_preindexed = 'stp x29, x30, [sp, #-16]!'
         line_postindexed = 'ldp q2, q3, [x11], #64'
diff --git a/tests/test_parser_x86att.py b/tests/test_parser_x86att.py
index 47fb334..253518c 100755
--- a/tests/test_parser_x86att.py
+++ b/tests/test_parser_x86att.py
@@ -156,8 +156,8 @@ class TestParserX86ATT(unittest.TestCase):
     def test_parse_line(self):
         line_comment = '# -- Begin  main'
         line_label = '..B1.7:                         # Preds ..B1.6'
-        line_directive = '\t\t.quad   .2.3_2__kmpc_loc_pack.2 #qed'
-        line_instruction = '\t\tlea       2(%rax,%rax), %ecx #12.9'
+        line_directive = '.quad   .2.3_2__kmpc_loc_pack.2 #qed'
+        line_instruction = 'lea       2(%rax,%rax), %ecx #12.9'
 
         instruction_form_1 = {
             'instruction': None,