diff --git a/defaults/main.yml b/defaults/main.yml
index f88ac85..e8f0d70 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -93,8 +93,8 @@ nginx_set_xss_protection: True
 nginx_set_content_security_options: False
 # Choiches: 'self', 'none', a list of domains
 nginx_content_security_acl:
-  - 'self'
-#  - 'none'
+  - "'self'"
+#  - "'none'"
 #  - '{{ ansible_domain }}'
 nginx_set_frame_origin: False
 # SAMEORIGIN, DENY, ''