diff --git a/php/tasks/main.yml b/php/tasks/main.yml
index 83321bff..36e731d3 100644
--- a/php/tasks/main.yml
+++ b/php/tasks/main.yml
@@ -12,4 +12,4 @@
   when: ansible_distribution_release == "stretch"
 
 - include: main_buster.yml
-  when: ansible_distribution_major_version | version_compare('9', '>=')
+  when: ansible_distribution_release == "buster"