diff --git a/playbooks/api-jobs/promote.yaml b/playbooks/api-jobs/promote.yaml
index ecf510016c..7ebc9b13ce 100644
--- a/playbooks/api-jobs/promote.yaml
+++ b/playbooks/api-jobs/promote.yaml
@@ -21,8 +21,12 @@
         path: "{{ zuul.executor.work_root }}/docs"
         state: directory
     - name: Extract docs archive
+      vars:
+        findme:
+          - "{{ zuul.executor.work_root }}/docs-html.tar.bz2"
+          - "{{ zuul.executor.work_root }}/docs-html.tar.gz"
       unarchive:
-        src: "{{ zuul.executor.work_root }}/docs-html.tar.bz2"
+        src: "{{ lookup('first_found', findme) }}"
         dest: "{{ zuul.executor.work_root }}/docs"
     - name: Write root_marker file
       include_role:
diff --git a/playbooks/service-types/promote.yaml b/playbooks/service-types/promote.yaml
index d1cb9f476a..6725ee9f9c 100644
--- a/playbooks/service-types/promote.yaml
+++ b/playbooks/service-types/promote.yaml
@@ -23,8 +23,12 @@
         path: "{{ zuul.executor.work_root }}/docs"
         state: directory
     - name: Extract docs archive
+      vars:
+        findme:
+          - "{{ zuul.executor.work_root }}/docs-html.tar.bz2"
+          - "{{ zuul.executor.work_root }}/docs-html.tar.gz"
       unarchive:
-        src: "{{ zuul.executor.work_root }}/docs-html.tar.bz2"
+        src: "{{ lookup('first_found', findme) }}"
         dest: "{{ zuul.executor.work_root }}/docs"
     - name: Set target directory if master
       when: "zuul.branch == 'master'"