diff --git a/ispybLib.py b/ispybLib.py
index 4c78f2a5..2a6ee2c9 100644
--- a/ispybLib.py
+++ b/ispybLib.py
@@ -210,6 +210,8 @@ def insertResult(result,resultType,request,visitName,dc_id=None,xmlFileName=None
    sample = request['sample'] # this needs to be created and linked to a DC group
    if (resultType == 'fastDP'):
      mx_data_reduction_dict = xml_file_to_dict(xmlFileName)
+     comm = mx_data_reduction_dict['AutoProcProgramContainer']['AutoProcProgram']['processingCommandLine']
+     mx_data_reduction_dict['AutoProcProgramContainer']['AutoProcProgram']['processingCommandLine'] = comm[len(comm)-255:]
      (app_id, ap_id, scaling_id, integration_id) = mx_data_reduction_to_ispyb(mx_data_reduction_dict, dc_id, mxprocessing)
      mxprocessing.upsert_program_ex(program_id=app_id,status=1)