1 files changed, 6 insertions, 0 deletions
diff --git a/lib/app/chat.ex b/lib/app/chat.ex
index a9cfb1e..bc9f5de 100644
--- a/lib/app/chat.ex
+++ b/lib/app/chat.ex
@@ -117,6 +117,7 @@ defmodule SApp.Chat do
   end
 
   def handle_cast({:subscribe, pid}, state) do
+    Process.monitor(pid)
     new_subs = MapSet.put(state.subs, pid)
     {:noreply, %{ state | subs: new_subs }}
   end
@@ -159,6 +160,11 @@ defmodule SApp.Chat do
     {:noreply, %{state | store: new_store}}
   end
 
+  def handle_info({:DOWN, _ref, :process, pid, _reason}, state) do
+    new_subs = MapSet.delete(state.subs, pid)
+    {:noreply, %{ state | subs: new_subs }}
+  end
+
   defp push_messages(state, to, start, num) do
     case ML.read(state.store, start, num) do
       {:ok, list, rest} ->