diff --git a/lib/wombat/build.rb b/lib/wombat/build.rb
index ce91736..b1a9315 100644
--- a/lib/wombat/build.rb
+++ b/lib/wombat/build.rb
@@ -363,6 +363,7 @@ def packer_build_cmd(template, builder, options)
       cmd.insert(2, "--var build-nodes=#{wombat['build-nodes']['count']}")
       cmd.insert(2, "--var winrm_password=#{wombat['workstations']['password']}")
       cmd.insert(2, "--var winrm_username=Administrator")
+      cmd.insert(2, "--var wombat_ver=#{wombat['version']}")
       cmd.insert(2, "--var workstation-number=#{options['workstation-number']}") if template =~ /workstation/
       cmd.insert(2, "--var workstations=#{wombat['workstations']['count']}")
       cmd.insert(2, "--var aws_source_ami=#{base_image(template, builder, options)}") if builder =~ /amazon-ebs/
diff --git a/lib/wombat/version.rb b/lib/wombat/version.rb
index 598cfee..26ebf00 100644
--- a/lib/wombat/version.rb
+++ b/lib/wombat/version.rb
@@ -1,3 +1,3 @@
 module Wombat
-  VERSION = "0.7.2"
+  VERSION = "0.7.3"
 end