diff --git a/app/serializers/site_serializer.rb b/app/serializers/site_serializer.rb
index 4b89c974c0e..0ddc329fd8e 100644
--- a/app/serializers/site_serializer.rb
+++ b/app/serializers/site_serializer.rb
@@ -248,7 +248,7 @@ class SiteSerializer < ApplicationSerializer
   end
 
   def whispers_allowed_groups_names
-    SiteSetting.whispers_allowed_groups_map&.map { |id| Group.where(id: id).pluck_first(:name) }
+    Group.where(id: SiteSetting.whispers_allowed_groups_map).pluck(:name)
   end
 
   def include_whispers_allowed_groups_names?
diff --git a/spec/serializers/site_serializer_spec.rb b/spec/serializers/site_serializer_spec.rb
index 7692cccae62..e65b18c98c8 100644
--- a/spec/serializers/site_serializer_spec.rb
+++ b/spec/serializers/site_serializer_spec.rb
@@ -255,7 +255,7 @@ RSpec.describe SiteSerializer do
       SiteSetting.whispers_allowed_groups = "#{Group::AUTO_GROUPS[:staff]}|#{Group::AUTO_GROUPS[:trust_level_4]}"
 
       serialized = described_class.new(Site.new(admin_guardian), scope: admin_guardian, root: false).as_json
-      expect(serialized[:whispers_allowed_groups_names]).to eq(["staff", "trust_level_4"])
+      expect(serialized[:whispers_allowed_groups_names]).to contain_exactly("trust_level_4", "staff")
     end
 
     it "returns group names when user is allowed to whisper" do