diff --git a/plugins/zynaddsubfx/ZynAddSubFx.cpp b/plugins/zynaddsubfx/ZynAddSubFx.cpp
index 47da5147c..8bba1f10f 100644
--- a/plugins/zynaddsubfx/ZynAddSubFx.cpp
+++ b/plugins/zynaddsubfx/ZynAddSubFx.cpp
@@ -445,8 +445,8 @@ void ZynAddSubFxInstrument::initPlugin()
 			RemotePlugin::message( IdZasfPresetDirectory ).
 				addString(
 					QSTR_TO_STDSTR(
-						QString( ConfigManager::inst()->factoryPresetsDir() +
-								QDir::separator() + "ZynAddSubFX" ) ) ) );
+						QDir( ConfigManager::inst()->factoryPresetsDir() +
+								"/ZynAddSubFX" ).absolutePath() ) ) );
 
 		m_remotePlugin->updateSampleRate( Engine::mixer()->processingSampleRate() );