diff --git a/lnt/tests/compile.py b/lnt/tests/compile.py
--- a/lnt/tests/compile.py
+++ b/lnt/tests/compile.py
@@ -993,7 +993,7 @@
 # FIXME: an equivalent to argparse's add_argument_group is not implemented
 #        on click. Need to review it when such functionality is available.
 #        https://github.com/pallets/click/issues/373
-@click.command("compile", help=usage_info, short_help=__doc__)
+@click.command("compile", help=usage_info, short_help=str(__doc__))
 @click.argument("label", default=platform.uname()[1], required=False,
                 type=click.UNPROCESSED)
 @click.option("-s", "--sandbox", "sandbox_path", required=True,
diff --git a/lnt/tests/nt.py b/lnt/tests/nt.py
--- a/lnt/tests/nt.py
+++ b/lnt/tests/nt.py
@@ -1842,7 +1842,7 @@
 # FIXME: an equivalent to argparse's add_argument_group is not implemented
 #        on click. Need to review it when such functionality is available.
 #        https://github.com/pallets/click/issues/373
-@click.command("nt", help=usage_info, short_help=__doc__)
+@click.command("nt", help=usage_info, short_help=str(__doc__))
 @click.argument("label", default=platform.uname()[1], required=False,
                 type=click.UNPROCESSED)
 #  Sandbox
diff --git a/lnt/tests/test_suite.py b/lnt/tests/test_suite.py
--- a/lnt/tests/test_suite.py
+++ b/lnt/tests/test_suite.py
@@ -1024,7 +1024,7 @@
         return lnt.util.ImportData.no_submit()
 
 
-@click.command("test-suite", short_help=__doc__)
+@click.command("test-suite", short_help=str(__doc__))
 @click.argument("label", default=platform.uname()[1], required=False,
                 type=click.UNPROCESSED)
 # Sandbox options