diff --git a/tasks/main.yml b/tasks/main.yml
index b77bc96..2bbf5c4 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -56,7 +56,8 @@
       name: certificates
     vars:
       certificates:
-        certs: "{{ {}|combine(prometheus_certs, inventory_certs, recursive=True) }}"
+        certs:
+          prometheus_agent: "{{ ({}|combine(prometheus_certs, inventory_certs, recursive=True))['prometheus_agent'] }}"
 
 - name: slurp up all scraper certs
   loop: "{{ prometheus_agent.scrapers.keys()|list }}"