diff --git a/src/lib/deskflow/App.h b/src/lib/deskflow/App.h
index 9c8c2b095..7f199fa7c 100644
--- a/src/lib/deskflow/App.h
+++ b/src/lib/deskflow/App.h
@@ -26,7 +26,6 @@ namespace deskflow {
 class Screen;
 }
 
-class ILogOutputter;
 class FileLogOutputter;
 class IEventQueue;
 class SocketMultiplexer;