diff --git a/tests/vm/flatpaks.yml b/tests/vm/flatpaks.yml
index ade2513..4f72040 100644
--- a/tests/vm/flatpaks.yml
+++ b/tests/vm/flatpaks.yml
@@ -7,7 +7,7 @@
   tasks:
   - name: Get gpg key
     ansible.builtin.set_fact:
-      found_gpg: "{{ slurpfile['/ostree/deploy/default/var/lib/flatpak/repo'] | base64 }}"
+      found_gpg: "{{ slurpfile['/ostree/deploy/default/var/lib/flatpak/repo'] | b64encode }}"
       expected_gpg: "{{ lookup('ansible.builtin.url', 'https://flathub.org/repo/flathub.flatpakrepo', split_lines=True) | regex_search('^GPGKey=(.*)$', '\\1' multiline=True, ignorecase=True) }}"
   
   - name: Test GPG key