diff --git a/tempest/cmd/account_generator.py b/tempest/cmd/account_generator.py
index 249261b..9e1d391 100755
--- a/tempest/cmd/account_generator.py
+++ b/tempest/cmd/account_generator.py
@@ -277,12 +277,11 @@
 
     def take_action(self, parsed_args):
         try:
-            return main(parsed_args)
+            main(parsed_args)
         except Exception:
             LOG.exception("Failure generating test accounts.")
             traceback.print_exc()
             raise
-        return 0
 
     def get_description(self):
         return DESCRIPTION
diff --git a/tempest/cmd/cleanup.py b/tempest/cmd/cleanup.py
index caba4b5..e8e691e 100644
--- a/tempest/cmd/cleanup.py
+++ b/tempest/cmd/cleanup.py
@@ -83,7 +83,6 @@
             LOG.exception("Failure during cleanup")
             traceback.print_exc()
             raise
-        return 0
 
     def init(self, parsed_args):
         cleanup_service.init_conf()
diff --git a/tempest/cmd/list_plugins.py b/tempest/cmd/list_plugins.py
index 1f1ff1a..5f6b3e6 100644
--- a/tempest/cmd/list_plugins.py
+++ b/tempest/cmd/list_plugins.py
@@ -30,7 +30,6 @@
 class TempestListPlugins(command.Command):
     def take_action(self, parsed_args):
         self._list_plugins()
-        return 0
 
     def get_description(self):
         return 'List all tempest plugins'
diff --git a/tempest/cmd/run_stress.py b/tempest/cmd/run_stress.py
index 9c8552f..7502c23 100755
--- a/tempest/cmd/run_stress.py
+++ b/tempest/cmd/run_stress.py
@@ -97,7 +97,6 @@
             LOG.exception("Failure in the stress test framework")
             traceback.print_exc()
             raise
-        return 0
 
     def get_description(self):
         return 'Run tempest stress tests'
diff --git a/tempest/cmd/verify_tempest_config.py b/tempest/cmd/verify_tempest_config.py
index 72ea894..10f753c 100644
--- a/tempest/cmd/verify_tempest_config.py
+++ b/tempest/cmd/verify_tempest_config.py
@@ -418,12 +418,11 @@
 
     def take_action(self, parsed_args):
         try:
-            return main(parsed_args)
+            main(parsed_args)
         except Exception:
             LOG.exception("Failure verifying configuration.")
             traceback.print_exc()
             raise
-        return 0
 
 if __name__ == "__main__":
     main()