diff --git a/roles/phabricator/files/phabricator-preable.php b/roles/phabricator/files/phabricator-preable.php
new file mode 100644
index 0000000000..22a8de77ef
--- /dev/null
+++ b/roles/phabricator/files/phabricator-preable.php
@@ -0,0 +1,3 @@
+<?php
+
+$_SERVER['HTTPS'] = true;
diff --git a/roles/phabricator/tasks/main.yml b/roles/phabricator/tasks/main.yml
index 58510b53df..5ca90c4669 100644
--- a/roles/phabricator/tasks/main.yml
+++ b/roles/phabricator/tasks/main.yml
@@ -111,6 +111,9 @@
   notify:
    - restart phd
 
+- name: copy phabricator preamble
+  file: src=phabricator-preamble.php dest={{ phabroot }}/phabricator/support/preamble.php owner=apache group=apache mode=0644
+
 - name: copy phabricator custom login plugin
   template: src=CustomLoginHandler.php.j2 dest={{ phabroot }}/phabricator/src/extensions/CustomLoginHandler.php owner=apache group=apache mode=0644
   notify: