diff --git a/tasks.py b/tasks.py
index 0566762..6d4430b 100644
--- a/tasks.py
+++ b/tasks.py
@@ -35,11 +35,11 @@ exec(open(os.path.join(here, 'tailbone_corepos', '_version.py')).read())
 
 
 @task
-def release(ctx):
+def release(c):
     """
     Release a new version of 'tailbone-corepos'.
     """
     shutil.rmtree('tailbone_corepos.egg-info')
-    ctx.run('python setup.py sdist --formats=gztar')
-    filename = 'tailbone-corepos-{}.tar.gz'.format(__version__)
-    ctx.run('twine upload dist/{}'.format(filename))
+    c.run('python setup.py sdist --formats=gztar')
+    filename = f'tailbone_corepos-{__version__}.tar.gz'
+    c.run('twine upload dist/{}'.format(filename))