diff --git a/wscript b/wscript
index b9b9410..2c30e6c 100644
--- a/wscript
+++ b/wscript
@@ -219,6 +219,8 @@
     <string>APPL</string>
     <key>CFBundleGetInfoString</key>
     <string>Created by Waf</string>
+    <key>CFBundleIdentifier</key>
+    <string>edu.ucla.cs.irl.Chronoshare</string>
     <key>CFBundleSignature</key>
     <string>????</string>
     <key>NOTE</key>