diff --git a/_config.yml b/_config.yml
index 871362a..f3e87cd 100644
--- a/_config.yml
+++ b/_config.yml
@@ -125,7 +125,7 @@ pwa:
     # Usually its value is the `baseurl` of another website that
     # shares the same domain name as the current website.
     deny_paths:
-    "/api"
+      - "/api"
       # - "/example"  # URLs match `<SITE_URL>/example/*` will not be cached by the PWA
 
 paginate: 10