diff --git a/mayan/apps/lock_manager/models.py b/mayan/apps/lock_manager/models.py
index 3de78a7d1b..b752786981 100644
--- a/mayan/apps/lock_manager/models.py
+++ b/mayan/apps/lock_manager/models.py
@@ -10,7 +10,7 @@ from .settings import DEFAULT_LOCK_TIMEOUT
 class Lock(models.Model):
     creation_datetime = models.DateTimeField(verbose_name=_('Creation datetime'), auto_now_add=True)
     timeout = models.IntegerField(default=DEFAULT_LOCK_TIMEOUT, verbose_name=_('Timeout'))
-    name = models.CharField(max_length=48, verbose_name=_('Name'), unique=True)
+    name = models.CharField(max_length=64, verbose_name=_('Name'), unique=True)
 
     objects = LockManager()
 
diff --git a/mayan/apps/lock_manager/south_migrations/0003_auto__chg_field_lock_name.py b/mayan/apps/lock_manager/south_migrations/0003_auto__chg_field_lock_name.py
new file mode 100644
index 0000000000..ec7dc36cf1
--- /dev/null
+++ b/mayan/apps/lock_manager/south_migrations/0003_auto__chg_field_lock_name.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+from south.utils import datetime_utils as datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+
+        # Changing field 'Lock.name'
+        db.alter_column(u'lock_manager_lock', 'name', self.gf('django.db.models.fields.CharField')(unique=True, max_length=64))
+
+    def backwards(self, orm):
+
+        # Changing field 'Lock.name'
+        db.alter_column(u'lock_manager_lock', 'name', self.gf('django.db.models.fields.CharField')(max_length=48, unique=True))
+
+    models = {
+        u'lock_manager.lock': {
+            'Meta': {'object_name': 'Lock'},
+            'creation_datetime': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '64'}),
+            'timeout': ('django.db.models.fields.IntegerField', [], {'default': '30'})
+        }
+    }
+
+    complete_apps = ['lock_manager']
\ No newline at end of file