diff --git a/tracker/rabit_demo.py b/tracker/rabit_demo.py
index be98f3458..14d8b7601 100755
--- a/tracker/rabit_demo.py
+++ b/tracker/rabit_demo.py
@@ -1,7 +1,6 @@
 #!/usr/bin/python
 """
-This is the demo submission script of rabit, it is created to
-submit rabit jobs using hadoop streaming
+This is the demo submission script of rabit for submitting jobs in local machine
 """
 import argparse
 import sys
diff --git a/tracker/rabit_mpi.py b/tracker/rabit_mpi.py
index 2bc7d9ea0..e8ddb45e7 100755
--- a/tracker/rabit_mpi.py
+++ b/tracker/rabit_mpi.py
@@ -1,7 +1,6 @@
 #!/usr/bin/python
 """
-This is the demo submission script of rabit, it is created to
-submit rabit jobs using MPI
+Submission script to submit rabit jobs using MPI
 """
 import argparse
 import sys
diff --git a/tracker/rabit_sge.py b/tracker/rabit_sge.py
index c236067e5..e2c84cc78 100755
--- a/tracker/rabit_sge.py
+++ b/tracker/rabit_sge.py
@@ -1,7 +1,6 @@
 #!/usr/bin/python
 """
-This is the demo submission script of rabit, it is created to
-submit rabit jobs to Sun Grid Engine
+Submit rabit jobs to Sun Grid Engine
 """
 import argparse
 import sys