diff --git a/requirements-swh.txt b/requirements-swh.txt
index 5a27d65..811945a 100644
--- a/requirements-swh.txt
+++ b/requirements-swh.txt
@@ -1,2 +1,2 @@
 # Add here internal Software Heritage dependencies, one per line.
-swh.core >= 0.3
+swh.core[http] >= 0.3
diff --git a/swh/clearlydefined/cli.py b/swh/clearlydefined/cli.py
index 3a50b65..5e98570 100644
--- a/swh/clearlydefined/cli.py
+++ b/swh/clearlydefined/cli.py
@@ -1,19 +1,19 @@
 import click
 
 from swh.core.cli import CONTEXT_SETTINGS
 from swh.core.cli import swh as swh_cli_group
 
 
-@swh_cli_group(name="clearlydefined", context_settings=CONTEXT_SETTINGS)
+@swh_cli_group.group(name="clearlydefined", context_settings=CONTEXT_SETTINGS)
 @click.pass_context
 def clearlydefined_cli_group(ctx):
     """Foo main command.
     """
 
 
 @clearlydefined_cli_group.command()
 @click.option("--bar", help="Something")
 @click.pass_context
 def bar(ctx, bar):
     """Do something."""
     click.echo("bar")
diff --git a/swh/clearlydefined/tests/test_nothing.py b/swh/clearlydefined/tests/test_nothing.py
new file mode 100644
index 0000000..cf504a4
--- /dev/null
+++ b/swh/clearlydefined/tests/test_nothing.py
@@ -0,0 +1,3 @@
+def test_nothing():
+    # Placeholder; remove this when we add actual tests
+    pass