diff --git a/app/controllers/api/v1/timelines/public_controller.rb b/app/controllers/api/v1/timelines/public_controller.rb
index d0aaf5ee802626..0d3913d6decc7c 100644
--- a/app/controllers/api/v1/timelines/public_controller.rb
+++ b/app/controllers/api/v1/timelines/public_controller.rb
@@ -14,11 +14,14 @@ def show
   private
 
   def require_auth?
-    !Setting.timeline_preview
-    if truthy_param?(:local)
-      !Setting.timeline_preview_local
-    elsif truthy_param?(:remote)
-      !Setting.timeline_preview_remote
+    if !Setting.timeline_preview
+      if truthy_param?(:local)
+        !Setting.timeline_preview_local
+      elsif truthy_param?(:remote)
+        !Setting.timeline_preview_remote
+      end
+    else
+      !Setting.timeline_preview
     end
   end