diff --git a/src/qtsingleapp/qtlocalpeer.h b/src/qtsingleapp/qtlocalpeer.h
index 8a54a9b5e..b81dbd11a 100644
--- a/src/qtsingleapp/qtlocalpeer.h
+++ b/src/qtsingleapp/qtlocalpeer.h
@@ -48,6 +48,7 @@
 #include <QtNetwork/QLocalServer>
 #include <QtNetwork/QLocalSocket>
 #include <QtCore/QDir>
+#include <QtDebug>
 
 namespace QtLP_Private {
 #include "qtlockedfile.h"