diff --git a/ceph/init.sls b/ceph/init.sls
index 192bae4..56df1c4 100644
--- a/ceph/init.sls
+++ b/ceph/init.sls
@@ -8,7 +8,7 @@ include:
 
 install_ceph_pkgs:
   pkg.installed:
-    - pkgs: {{ ceph.packages }}
+    - pkgs: {{ ceph.packages | json }}
 
 create_ceph_config_file:
   file.touch: