diff --git a/lib/monitor/run.js b/lib/monitor/run.js
index e05041e4..52442033 100644
--- a/lib/monitor/run.js
+++ b/lib/monitor/run.js
@@ -64,7 +64,7 @@ function run(options) {
   const binPath = process.cwd() + '/node_modules/.bin';
 
   const spawnOptions = {
-    env: Object.assign({}, process.env, options.execOptions.env, {
+    env: Object.assign({}, options.execOptions.env, process.env, {
       PATH:
         binPath +
         path.delimiter +