diff --git a/core/settings/qPrefDisplay.cpp b/core/settings/qPrefDisplay.cpp
index 46d8d8851..50ce84a96 100644
--- a/core/settings/qPrefDisplay.cpp
+++ b/core/settings/qPrefDisplay.cpp
@@ -12,31 +12,31 @@ QPointF qPrefDisplay::st_tooltip_position;
 static const QPointF st_tooltip_position_default = QPointF(0,0);
 
 QString qPrefDisplay::st_lastDir;
-static const QString st_lastDir_default = "";
+static const QString st_lastDir_default;
 
 QString qPrefDisplay::st_theme;
 static const QString st_theme_default = QStringLiteral("Blue");
 
 QString qPrefDisplay::st_userSurvey;
-static const QString st_userSurvey_default = "";
+static const QString st_userSurvey_default;
 
 QByteArray qPrefDisplay::st_mainSplitter;
-static const QByteArray st_mainSplitter_default = "";
+static const QByteArray st_mainSplitter_default;
 
 QByteArray qPrefDisplay::st_topSplitter;
-static const QByteArray st_topSplitter_default = "";
+static const QByteArray st_topSplitter_default;
 
 QByteArray qPrefDisplay::st_bottomSplitter;
-static const QByteArray st_bottomSplitter_default = "";
+static const QByteArray st_bottomSplitter_default;
 
 bool qPrefDisplay::st_maximized;
 static bool st_maximized_default = false;
 
 QByteArray qPrefDisplay::st_geometry;
-static const QByteArray st_geometry_default = 0;
+static const QByteArray st_geometry_default;
 
 QByteArray qPrefDisplay::st_windowState;
-static const QByteArray st_windowState_default = 0;
+static const QByteArray st_windowState_default;
 
 int qPrefDisplay::st_lastState;
 static int st_lastState_default = false;
diff --git a/core/settings/qPrefGeneral.cpp b/core/settings/qPrefGeneral.cpp
index 9254a8c51..c0e8026fe 100644
--- a/core/settings/qPrefGeneral.cpp
+++ b/core/settings/qPrefGeneral.cpp
@@ -6,7 +6,7 @@
 static const QString group = QStringLiteral("GeneralSettings");
 
 QString qPrefGeneral::st_diveshareExport_uid;
-static const QString st_diveshareExport_uid_default = "";
+static const QString st_diveshareExport_uid_default;
 
 bool qPrefGeneral::st_diveshareExport_private;
 static const bool st_diveshareExport_private_default = false;
diff --git a/core/settings/qPrefUpdateManager.cpp b/core/settings/qPrefUpdateManager.cpp
index 518296fea..4b5fb9e45 100644
--- a/core/settings/qPrefUpdateManager.cpp
+++ b/core/settings/qPrefUpdateManager.cpp
@@ -6,7 +6,7 @@
 static const QString group = QStringLiteral("UpdateManager");
 
 QString qPrefUpdateManager::st_uuidString;
-static const QString st_uuidString_default = "";
+static const QString st_uuidString_default;
 
 qPrefUpdateManager::qPrefUpdateManager(QObject *parent) : QObject(parent)
 {