diff --git a/lib/exsync/application.ex b/lib/exsync/application.ex
index 954aefc..d9c87b0 100644
--- a/lib/exsync/application.ex
+++ b/lib/exsync/application.ex
@@ -1,5 +1,3 @@
-require Logger
-
 defmodule ExSync.Application do
   def start(_, _) do
     children =
diff --git a/lib/exsync/beam_monitor.ex b/lib/exsync/beam_monitor.ex
index ed8396a..5983b24 100644
--- a/lib/exsync/beam_monitor.ex
+++ b/lib/exsync/beam_monitor.ex
@@ -96,7 +96,7 @@ defmodule ExSync.BeamMonitor do
 
   defp track_module_change(:nothing, _module, state), do: state
 
-  defp track_module_change(:reload_module, module, state) do
+  defp track_module_change(:reload_module, module, %State{} = state) do
     %State{reload_set: reload_set, unload_set: unload_set} = state
 
     %State{
@@ -106,7 +106,7 @@ defmodule ExSync.BeamMonitor do
     }
   end
 
-  defp track_module_change(:unload_module, module, state) do
+  defp track_module_change(:unload_module, module, %State{} = state) do
     %State{reload_set: reload_set, unload_set: unload_set} = state
 
     %State{
diff --git a/lib/exsync/src_monitor.ex b/lib/exsync/src_monitor.ex
index 730c738..55371d6 100644
--- a/lib/exsync/src_monitor.ex
+++ b/lib/exsync/src_monitor.ex
@@ -58,7 +58,7 @@ defmodule ExSync.SrcMonitor do
     {:noreply, state}
   end
 
-  def handle_info(:throttle_timer_complete, state) do
+  def handle_info(:throttle_timer_complete, %State{} = state) do
     ExSync.Utils.recomplete()
     state = %State{state | throttle_timer: nil}
     {:noreply, state}