diff --git a/lib/trento/application/projectors/host_projector.ex b/lib/trento/application/projectors/host_projector.ex
index 0104ed5c24..7892b8d585 100644
--- a/lib/trento/application/projectors/host_projector.ex
+++ b/lib/trento/application/projectors/host_projector.ex
@@ -275,6 +275,17 @@ defmodule Trento.HostProjector do
     end
   end
 
+  def after_update(
+        %HostRemovedFromCluster{host_id: host_id},
+        _,
+        %{host: %Trento.HostReadModel{cluster_id: nil}}
+      ) do
+    TrentoWeb.Endpoint.broadcast("monitoring:hosts", "host_details_updated", %{
+      id: host_id,
+      cluster_id: nil
+    })
+  end
+
   def after_update(
         %HostDetailsUpdated{},
         _,
diff --git a/test/trento/application/projectors/host_projector_test.exs b/test/trento/application/projectors/host_projector_test.exs
index b5cd403776..084cd6b632 100644
--- a/test/trento/application/projectors/host_projector_test.exs
+++ b/test/trento/application/projectors/host_projector_test.exs
@@ -151,6 +151,10 @@ defmodule Trento.HostProjectorTest do
     projection = Repo.get!(HostReadModel, host_id)
 
     assert nil == projection.cluster_id
+
+    assert_broadcast "host_details_updated",
+                     %{id: ^host_id, cluster_id: nil},
+                     1000
   end
 
   test "should not set the cluster_id to nil if a HostRemovedFromCluster event is received and the host is not part of the cluster anymore" do
@@ -172,6 +176,8 @@ defmodule Trento.HostProjectorTest do
     projection = Repo.get!(HostReadModel, host_id)
 
     assert cluster_id == projection.cluster_id
+
+    refute_broadcast "host_details_updated", %{id: ^host_id}
   end
 
   test "should update an existing host when HostDetailsUpdated event is received", %{