diff --git a/lib/nbi.coffee b/lib/nbi.coffee
index 8daac24..ef830a6 100644
--- a/lib/nbi.coffee
+++ b/lib/nbi.coffee
@@ -48,6 +48,8 @@ db = require './db'
 query = require './query'
 apiFunctions = require './api-functions'
 
+VERSION = require('../package.json').version
+
 # regular expression objects
 DEVICE_TASKS_REGEX = /^\/devices\/([a-zA-Z0-9\-\_\%]+)\/tasks\/?$/
 TASKS_REGEX = /^\/tasks\/([a-zA-Z0-9\-\_\%]+)(\/[a-zA-Z_]*)?$/
@@ -76,6 +78,8 @@ listener = (request, response) ->
   chunks = []
   bytes = 0
 
+  response.setHeader('GenieACS-Version', VERSION)
+
   request.addListener 'data', (chunk) ->
     chunks.push(chunk)
     bytes += chunk.length