Checkout version tag
diff --git a/onos-build-vm.py b/onos-build-vm.py
index 9ee1a43..f601648 100755
--- a/onos-build-vm.py
+++ b/onos-build-vm.py
@@ -17,6 +17,8 @@
     print 'Cannot find Mininet build script. Exiting...'
     sys.exit( 1 )
 
+onos_version='1.0.0'
+
 # Import required functions from the Mininet build script
 from build import bootAndRun, Prompt, OVFOSNameID, generateOVF, log, build, run
 
@@ -33,6 +35,11 @@
     vm.sendline('sudo su - tutorial1')
     vm.expect(prompt, timeout=20) 
     vm.sendline( 'git clone https://gerrit.onosproject.org/onos' )
+    vm.expect( prompt, timeout=30 )
+    vm.sendline( 'cd onos' )
+    vm.expect( prompt, timeout=30 )
+    vm.sendline( 'git checkout %s' % onos_version )
+
 
     vm.expect( prompt, timeout=1200 )