diff --git a/cas_server/management/commands/cas_clean_sessions.py b/cas_server/management/commands/cas_clean_sessions.py
index da60c1a263fa348f48595f79bc4ba80b52c4ffed..3d3209046d759b32609b92acbdd68e5f70eba28e 100644
--- a/cas_server/management/commands/cas_clean_sessions.py
+++ b/cas_server/management/commands/cas_clean_sessions.py
@@ -1,3 +1,4 @@
+"""Clean deleted sessions management command"""
 from django.core.management.base import BaseCommand
 from django.utils.translation import ugettext_lazy as _
 
@@ -5,6 +6,7 @@ from ... import models
 
 
 class Command(BaseCommand):
+    """Clean deleted sessions"""
     args = ''
     help = _(u"Clean deleted sessions")
 
diff --git a/cas_server/management/commands/cas_clean_tickets.py b/cas_server/management/commands/cas_clean_tickets.py
index d18a7d44ca5119e0e96909c18e4905bf39647296..dfbd4ec4b8a32a2b2c1edf9ef45f57b296c2df6e 100644
--- a/cas_server/management/commands/cas_clean_tickets.py
+++ b/cas_server/management/commands/cas_clean_tickets.py
@@ -1,3 +1,4 @@
+"""Clean old trickets management command"""
 from django.core.management.base import BaseCommand
 from django.utils.translation import ugettext_lazy as _
 
@@ -5,6 +6,7 @@ from ... import models
 
 
 class Command(BaseCommand):
+    """Clean old trickets"""
     args = ''
     help = _(u"Clean old trickets")