diff --git a/app/models/fediblock_state.rb b/app/models/fediblock_state.rb
index 214e2f5e..b5258fb6 100644
--- a/app/models/fediblock_state.rb
+++ b/app/models/fediblock_state.rb
@@ -82,8 +82,8 @@ class FediblockState < ApplicationRecord
 
   # @return [Array<String>]
   def list_names
-    @list_names ||= fediblock.instances.map do |instance|
-      "@*@#{instance}"
+    @list_names ||= fediblock.hostnames.map do |hostname|
+      "@*@#{hostname}"
     end
   end