diff --git a/lib/pleroma/stats.ex b/lib/pleroma/stats.ex
index 88740d155..7bbe089f8 100644
--- a/lib/pleroma/stats.ex
+++ b/lib/pleroma/stats.ex
@@ -10,6 +10,7 @@ defmodule Pleroma.Stats do
   alias Pleroma.CounterCache
   alias Pleroma.Repo
   alias Pleroma.User
+  alias Pleroma.Instances.Instance
 
   @interval :timer.seconds(300)
 
@@ -66,14 +67,13 @@ def get_peers do
           }
         }
   def calculate_stat_data do
+    # instances table has an unique constraint on the host column
     peers =
       from(
-        u in User,
-        select: fragment("distinct split_part(?, '@', 2)", u.nickname),
-        where: u.local != ^true
+        i in Instance,
+        select: i.host
       )
       |> Repo.all()
-      |> Enum.filter(& &1)
 
     domain_count = Enum.count(peers)
 
diff --git a/test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs
index 7b400d1ee..39e9629eb 100644
--- a/test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs
@@ -61,7 +61,9 @@ test "get instance stats", %{conn: conn} do
     {:ok, _user2} = User.set_activation(user2, false)
 
     insert(:user, %{local: false, nickname: "u@peer1.com"})
+    insert(:instance, %{domain: "peer1.com"})
     insert(:user, %{local: false, nickname: "u@peer2.com"})
+    insert(:instance, %{domain: "peer2.com"})
 
     {:ok, _} = Pleroma.Web.CommonAPI.post(user, %{status: "cofe"})
 
@@ -81,7 +83,9 @@ test "get instance stats", %{conn: conn} do
 
   test "get peers", %{conn: conn} do
     insert(:user, %{local: false, nickname: "u@peer1.com"})
+    insert(:instance, %{domain: "peer1.com"})
     insert(:user, %{local: false, nickname: "u@peer2.com"})
+    insert(:instance, %{domain: "peer2.com"})
 
     Pleroma.Stats.force_update()