diff --git a/pavelib/assets.py b/pavelib/assets.py
index 78c249b2df5f7ad276d9300a0092b2adcb9749f2..330b43c9db764df467721ae0e619e48dc102edd4 100644
--- a/pavelib/assets.py
+++ b/pavelib/assets.py
@@ -632,7 +632,7 @@ def collect_assets(systems, settings):
     `settings` is the Django settings module to use.
     """
     for sys in systems:
-        sh(django_cmd(sys, settings, "collectstatic --noinput > /dev/null"))
+        sh(django_cmd(sys, settings, "collectstatic --clear --noinput"))
         print("\t\tFinished collecting {} assets.".format(sys))
 
 
diff --git a/pavelib/paver_tests/test_servers.py b/pavelib/paver_tests/test_servers.py
index 812dd58d7ac15a6231ac160b772f6df956c9ca43..c68cae7fc2a100b3cdfa26b0caffa5dd9e167a90 100644
--- a/pavelib/paver_tests/test_servers.py
+++ b/pavelib/paver_tests/test_servers.py
@@ -27,7 +27,7 @@ EXPECTED_PREPROCESS_ASSETS_COMMAND = (
     u" {system}/static/sass/*.scss {system}/static/themed_sass"
 )
 EXPECTED_COLLECT_STATIC_COMMAND = (
-    u"python manage.py {system} --settings={asset_settings} collectstatic --noinput > /dev/null"
+    u"python manage.py {system} --settings={asset_settings} collectstatic --clear --noinput"
 )
 EXPECTED_CELERY_COMMAND = (
     u"python manage.py lms --settings={settings} celery worker --beat --loglevel=INFO --pythonpath=."