diff --git a/old-configure.in b/old-configure.in
index 036734708f20d658248a8b5b3a6d8adc2530a878..4e1f0d96cd355cc1195b58548b29c1a5d6bedaa8 100644
--- a/old-configure.in
+++ b/old-configure.in
@@ -89,7 +89,7 @@ dnl Mac bundle identifier (based on MOZ_APP_DISPLAYNAME)
 if test -z "$MOZ_MACBUNDLE_ID"; then
    MOZ_MACBUNDLE_ID=`echo $MOZ_APP_DISPLAYNAME | tr 'A-Z' 'a-z' | tr -dc 'a-z-'`
 fi
-MOZ_MACBUNDLE_ID=${MOZ_DISTRIBUTION_ID}.${MOZ_MACBUNDLE_ID}
+MOZ_MACBUNDLE_ID=app.zen-browser.zen
 if test "$MOZ_DEBUG"; then
   MOZ_MACBUNDLE_ID=${MOZ_MACBUNDLE_ID}debug
 fi