diff --git a/tests/functional/test_acpi_bits.py b/tests/functional/test_acpi_bits.py
index 4c192d95cc..3498b96787 100755
--- a/tests/functional/test_acpi_bits.py
+++ b/tests/functional/test_acpi_bits.py
@@ -150,7 +150,6 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self._vm = None
-        self._workDir = None
         self._baseDir = None
 
         self._debugcon_addr = '0x403'
@@ -169,7 +168,7 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
         config_file = 'bits-cfg.txt'
         bits_config_dir = os.path.join(self._baseDir, 'acpi-bits',
                                        'bits-config')
-        target_config_dir = os.path.join(self._workDir,
+        target_config_dir = os.path.join(self.workdir,
                                          'bits-%d' %self.BITS_INTERNAL_VER,
                                          'boot')
         self.assertTrue(os.path.exists(bits_config_dir))
@@ -186,7 +185,7 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
 
         bits_test_dir = os.path.join(self._baseDir, 'acpi-bits',
                                      'bits-tests')
-        target_test_dir = os.path.join(self._workDir,
+        target_test_dir = os.path.join(self.workdir,
                                        'bits-%d' %self.BITS_INTERNAL_VER,
                                        'boot', 'python')
 
@@ -225,8 +224,8 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
             the directory where we have extracted our pre-built bits grub
             tarball.
         """
-        grub_x86_64_mods = os.path.join(self._workDir, 'grub-inst-x86_64-efi')
-        grub_i386_mods = os.path.join(self._workDir, 'grub-inst')
+        grub_x86_64_mods = os.path.join(self.workdir, 'grub-inst-x86_64-efi')
+        grub_i386_mods = os.path.join(self.workdir, 'grub-inst')
 
         self.assertTrue(os.path.exists(grub_x86_64_mods))
         self.assertTrue(os.path.exists(grub_i386_mods))
@@ -247,11 +246,11 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
         """ Uses grub-mkrescue to generate a fresh bits iso with the python
             test scripts
         """
-        bits_dir = os.path.join(self._workDir,
+        bits_dir = os.path.join(self.workdir,
                                 'bits-%d' %self.BITS_INTERNAL_VER)
-        iso_file = os.path.join(self._workDir,
+        iso_file = os.path.join(self.workdir,
                                 'bits-%d.iso' %self.BITS_INTERNAL_VER)
-        mkrescue_script = os.path.join(self._workDir,
+        mkrescue_script = os.path.join(self.workdir,
                                        'grub-inst-x86_64-efi', 'bin',
                                        'grub-mkrescue')
 
@@ -290,17 +289,7 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
 
         self._baseDir = Path(__file__).parent
 
-        # workdir could also be avocado's own workdir in self.workdir.
-        # At present, I prefer to maintain my own temporary working
-        # directory. It gives us more control over the generated bits
-        # log files and also for debugging, we may chose not to remove
-        # this working directory so that the logs and iso can be
-        # inspected manually and archived if needed.
-        self._workDir = tempfile.mkdtemp(prefix='acpi-bits-',
-                                         suffix='.tmp')
-        self.logger.info('working dir: %s', self._workDir)
-
-        prebuiltDir = os.path.join(self._workDir, 'prebuilt')
+        prebuiltDir = os.path.join(self.workdir, 'prebuilt')
         if not os.path.isdir(prebuiltDir):
             os.mkdir(prebuiltDir, mode=0o775)
 
@@ -321,10 +310,10 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
 
         # extract the bits software in the temp working directory
         with zipfile.ZipFile(bits_zip_file, 'r') as zref:
-            zref.extractall(self._workDir)
+            zref.extractall(self.workdir)
 
         with tarfile.open(grub_tar_file, 'r', encoding='utf-8') as tarball:
-            tarball.extractall(self._workDir)
+            tarball.extractall(self.workdir)
 
         self.copy_test_scripts()
         self.copy_bits_config()
@@ -334,7 +323,7 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
         """parse the log generated by running bits tests and
            check for failures.
         """
-        debugconf = os.path.join(self._workDir, self._debugcon_log)
+        debugconf = os.path.join(self.workdir, self._debugcon_log)
         log = ""
         with open(debugconf, 'r', encoding='utf-8') as filehandle:
             log = filehandle.read()
@@ -360,25 +349,18 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
         """
         if self._vm:
             self.assertFalse(not self._vm.is_running)
-        if not os.getenv('BITS_DEBUG') and self._workDir:
-            self.logger.info('removing the work directory %s', self._workDir)
-            shutil.rmtree(self._workDir)
-        else:
-            self.logger.info('not removing the work directory %s ' \
-                             'as BITS_DEBUG is ' \
-                             'passed in the environment', self._workDir)
         super().tearDown()
 
     def test_acpi_smbios_bits(self):
         """The main test case implementation."""
 
-        iso_file = os.path.join(self._workDir,
+        iso_file = os.path.join(self.workdir,
                                 'bits-%d.iso' %self.BITS_INTERNAL_VER)
 
         self.assertTrue(os.access(iso_file, os.R_OK))
 
         self._vm = QEMUBitsMachine(binary=self.qemu_bin,
-                                   base_temp_dir=self._workDir,
+                                   base_temp_dir=self.workdir,
                                    debugcon_log=self._debugcon_log,
                                    debugcon_addr=self._debugcon_addr)