diff --git a/tests/functional/test_acpi_bits.py b/tests/functional/test_acpi_bits.py
index ee40647d5b..4c192d95cc 100755
--- a/tests/functional/test_acpi_bits.py
+++ b/tests/functional/test_acpi_bits.py
@@ -196,11 +196,12 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
         for filename in os.listdir(bits_test_dir):
             if os.path.isfile(os.path.join(bits_test_dir, filename)) and \
                filename.endswith('.py2'):
-                # all test scripts are named with extension .py2 so that
-                # avocado does not try to load them. These scripts are
-                # written for python 2.7 not python 3 and hence if avocado
-                # loaded them, it would complain about python 3 specific
-                # syntaxes.
+                # All test scripts are named with extension .py2 so that
+                # they are not run by accident.
+                #
+                # These scripts are intended to run inside the test VM
+                # and are written for python 2.7 not python 3, hence
+                # would cause syntax errors if loaded ouside the VM.
                 newfilename = os.path.splitext(filename)[0] + '.py'
                 shutil.copy2(os.path.join(bits_test_dir, filename),
                              os.path.join(target_test_dir, newfilename))
@@ -399,8 +400,6 @@ class AcpiBitsTest(QemuBaseTest): #pylint: disable=too-many-instance-attributes
 
         # biosbits has been configured to run all the specified test suites
         # in batch mode and then automatically initiate a vm shutdown.
-        # Set timeout to BITS_TIMEOUT for SHUTDOWN event from bits VM at par
-        # with the avocado test timeout.
         self._vm.event_wait('SHUTDOWN', timeout=BITS_TIMEOUT)
         self._vm.wait(timeout=None)
         self.logger.debug("Checking console output ...")