diff --git a/salt/states/pkgrepo.py b/salt/states/pkgrepo.py
index 7e2669820f..52609f346f 100644
--- a/salt/states/pkgrepo.py
+++ b/salt/states/pkgrepo.py
@@ -195,6 +195,10 @@ def managed(name, **kwargs):
        file.  The consolidate will run every time the state is processed. The
        option only needs to be set on one repo managed by salt to take effect.
 
+    clean_file
+       If set to true, empty file before config repo, dangerous if use
+       multiple sources in one file.
+
     refresh_db
        If set to false this will skip refreshing the apt package database on
        debian based systems.
@@ -281,6 +285,10 @@ def managed(name, **kwargs):
             ret['comment'] = ('Package repo {0!r} already configured'
                               .format(name))
             return ret
+
+    if kwargs.get('clean_file', False):
+        open(kwargs['file'], 'w').close()
+
     if __opts__['test']:
         ret['comment'] = ('Package repo {0!r} will be configured. This may '
                           'cause pkg states to behave differently than stated '