diff --git a/master/bt5/slapos_slap_tool/TestTemplateItem/testSlapOSSlapTool.py b/master/bt5/slapos_slap_tool/TestTemplateItem/testSlapOSSlapTool.py
index 44d3fcdaca7fec9058f8f06286b95174e54959c0..1af3efc2accc7f2c5d259052a1f23e04127a6750 100644
--- a/master/bt5/slapos_slap_tool/TestTemplateItem/testSlapOSSlapTool.py
+++ b/master/bt5/slapos_slap_tool/TestTemplateItem/testSlapOSSlapTool.py
@@ -1373,7 +1373,7 @@ class TestSlapOSSlapToolInstanceAccess(TestSlapOSSlapToolMixin):
       error_log = 'Please bang me'
       response = self.portal_slap.softwareInstanceBang(self.computer_id,
         partition_id, error_log)
-      self.assertEqual('None', response)
+      self.assertEqual('OK', response)
       created_at = rfc1123_date(DateTime())
       response = self.portal_slap.getComputerPartitionStatus(self.computer_id,
         partition_id)
@@ -2143,7 +2143,7 @@ class TestSlapOSSlapToolPersonAccess(TestSlapOSSlapToolMixin):
       error_log = 'Please bang me'
       response = self.portal_slap.softwareInstanceBang(self.computer_id,
         partition_id, error_log)
-      self.assertEqual('None', response)
+      self.assertEqual('OK', response)
       created_at = rfc1123_date(DateTime())
       response = self.portal_slap.getComputerPartitionStatus(self.computer_id,
         partition_id)
diff --git a/master/bt5/slapos_slap_tool/bt/revision b/master/bt5/slapos_slap_tool/bt/revision
index 8580e7b684b14da5d9f84ab4eaf2f5139d508cbe..b74e882ae378d7e5aae630f48c20dd1e40186d98 100644
--- a/master/bt5/slapos_slap_tool/bt/revision
+++ b/master/bt5/slapos_slap_tool/bt/revision
@@ -1 +1 @@
-30
\ No newline at end of file
+31
\ No newline at end of file
diff --git a/master/product/Vifib/Tool/SlapTool.py b/master/product/Vifib/Tool/SlapTool.py
index 3994ba7ae58cabd37f8f4537e7708b39736d6a4c..1231bcb9e623c88d18f8117541114ca34f3f1780 100644
--- a/master/product/Vifib/Tool/SlapTool.py
+++ b/master/product/Vifib/Tool/SlapTool.py
@@ -933,16 +933,15 @@ class SlapTool(BaseTool):
                     '#error bang called')
     timestamp = str(int(software_instance.getModificationDate()))
     key = "%s_bangstamp" % software_instance.getReference()
-    result = "OK"
 
     transition = self.getPortalObject().portal_workflow.getInfoFor(
       software_instance, 'action', wf_id='instance_slap_interface_workflow')
 
     if (self._getLastData(key) != timestamp) and \
       (transition != 'bang'):
-      result = software_instance.bang(bang_tree=True, comment=message)
+      software_instance.bang(bang_tree=True, comment=message)
       self._storeLastData(key, str(int(software_instance.getModificationDate())))
-    return result
+    return "OK"
 
   def _getAccessStatus(self, context_reference):
     memcached_dict = self._getMemcachedDict()