diff --git a/_postinstall.js b/_postinstall.js
index 0381daa7..aa00eaf8 100755
--- a/_postinstall.js
+++ b/_postinstall.js
@@ -1,3 +1,5 @@
+#!/usr/bin/env node
+
 // Broadcasts "Call for peace" message when package is installed in Russia, otherwise no-op
 
 "use strict";