diff --git a/plugins/zynaddsubfx/zynaddsubfx.cpp b/plugins/zynaddsubfx/zynaddsubfx.cpp
index 74cb5a8dd..aeecdd09c 100644
--- a/plugins/zynaddsubfx/zynaddsubfx.cpp
+++ b/plugins/zynaddsubfx/zynaddsubfx.cpp
@@ -239,8 +239,9 @@ void zynAddSubFx::initRemotePlugin( void )
 	m_plugin->sendMessage(
 		remotePlugin::message( IdZasfPresetDirectory ).
 			addString(
-				QSTR_TO_STDSTR( configManager::inst()->factoryPresetsDir() +
-					QDir::separator() + "ZynAddSubFX" ) ) );
+				QSTR_TO_STDSTR(
+					QString( configManager::inst()->factoryPresetsDir() +
+								QDir::separator() + "ZynAddSubFX" ) ) ) );
 	m_plugin->unlock();
 }