diff --git a/plugins/lunchmealplugin/lunchmealsettings.h b/plugins/lunchmealplugin/lunchmealsettings.h
index daa3d2b..7db1913 100644
--- a/plugins/lunchmealplugin/lunchmealsettings.h
+++ b/plugins/lunchmealplugin/lunchmealsettings.h
@@ -1,5 +1,4 @@
-#ifndef LUNCHMEALSETTINGS_H
-#define LUNCHMEALSETTINGS_H
+#pragma once
 
 #include <QObject>
 #include <QUrl>
@@ -34,5 +33,3 @@ private:
     static const QString m_defaultUrl;
     static const QString m_defaultDateFormat;
 };
-
-#endif // LUNCHMEALSETTINGS_H
diff --git a/plugins/lunchmealplugin/lunchmealsettingswidget.h b/plugins/lunchmealplugin/lunchmealsettingswidget.h
index 90f7ff0..72d99d6 100644
--- a/plugins/lunchmealplugin/lunchmealsettingswidget.h
+++ b/plugins/lunchmealplugin/lunchmealsettingswidget.h
@@ -1,5 +1,4 @@
-#ifndef LUNCHMEALSETTINGSWIDGET_H
-#define LUNCHMEALSETTINGSWIDGET_H
+#pragma once
 
 #include "settingswidget.h"
 
@@ -25,5 +24,3 @@ private:
     QLineEdit *m_lineEditUrl;
     QLineEdit *m_lineEditDateFormat;
 };
-
-#endif // LUNCHMEALSETTINGSWIDGET_H
diff --git a/plugins/presenceplugin/presencesettings.h b/plugins/presenceplugin/presencesettings.h
index 5df7126..1fb2610 100644
--- a/plugins/presenceplugin/presencesettings.h
+++ b/plugins/presenceplugin/presencesettings.h
@@ -1,5 +1,4 @@
-#ifndef PRESENCESETTINGS_H
-#define PRESENCESETTINGS_H
+#pragma once
 
 #include <QObject>
 
@@ -25,5 +24,3 @@ private:
     static const QString m_interval;
     static const int m_defaultInterval;
 };
-
-#endif // PRESENCESETTINGS_H
diff --git a/plugins/presenceplugin/presencesettingswidget.h b/plugins/presenceplugin/presencesettingswidget.h
index 6aaf882..5427b32 100644
--- a/plugins/presenceplugin/presencesettingswidget.h
+++ b/plugins/presenceplugin/presencesettingswidget.h
@@ -1,5 +1,4 @@
-#ifndef PRESENCESETTINGSWIDGET_H
-#define PRESENCESETTINGSWIDGET_H
+#pragma once
 
 #include "settingswidget.h"
 
@@ -24,5 +23,3 @@ private:
 
     QSpinBox *m_spinBox;
 };
-
-#endif // PRESENCESETTINGSWIDGET_H
diff --git a/plugins/updaterplugin/updatersettings.h b/plugins/updaterplugin/updatersettings.h
index dbce8ea..0eca1e4 100644
--- a/plugins/updaterplugin/updatersettings.h
+++ b/plugins/updaterplugin/updatersettings.h
@@ -1,5 +1,4 @@
-#ifndef UPDATERSETTINGS_H
-#define UPDATERSETTINGS_H
+#pragma once
 
 #include <QObject>
 #include <QUrl>
@@ -33,5 +32,3 @@ private:
     static const QString m_lastUpdateCheck;
     static const QUrl m_defaultUrl;
 };
-
-#endif // UPDATERSETTINGS_H
diff --git a/plugins/updaterplugin/updatersettingswidget.h b/plugins/updaterplugin/updatersettingswidget.h
index b5c0cda..74a938e 100644
--- a/plugins/updaterplugin/updatersettingswidget.h
+++ b/plugins/updaterplugin/updatersettingswidget.h
@@ -1,5 +1,4 @@
-#ifndef UPDATERSETTINGSWIDGET_H
-#define UPDATERSETTINGSWIDGET_H
+#pragma once
 
 #include "settingswidget.h"
 
@@ -24,5 +23,3 @@ private:
 
     QLineEdit *m_lineEdit;
 };
-
-#endif // UPDATERSETTINGSWIDGET_H
diff --git a/plugins/weatherplugin/weathersettings.h b/plugins/weatherplugin/weathersettings.h
index 92da89f..c137b6f 100644
--- a/plugins/weatherplugin/weathersettings.h
+++ b/plugins/weatherplugin/weathersettings.h
@@ -1,5 +1,4 @@
-#ifndef WEATHERSETTINGS_H
-#define WEATHERSETTINGS_H
+#pragma once
 
 #include <QObject>
 #include <QUrl>
@@ -26,5 +25,3 @@ private:
     static const QString m_url;
     static const QUrl m_defaultUrl;
 };
-
-#endif // WEATHERSETTINGS_H
diff --git a/plugins/weatherplugin/weathersettingswidget.h b/plugins/weatherplugin/weathersettingswidget.h
index e291159..b1688a6 100644
--- a/plugins/weatherplugin/weathersettingswidget.h
+++ b/plugins/weatherplugin/weathersettingswidget.h
@@ -1,5 +1,4 @@
-#ifndef WEATHERSETTINGSWIDGET_H
-#define WEATHERSETTINGSWIDGET_H
+#pragma once
 
 #include <QWidget>
 
@@ -28,5 +27,3 @@ private:
 
     QLineEdit *m_lineEdit;
 };
-
-#endif // WEATHERSETTINGSWIDGET_H
diff --git a/plugins/webradioplugin/webradiosettings.h b/plugins/webradioplugin/webradiosettings.h
index e70d7da..12c9ad7 100644
--- a/plugins/webradioplugin/webradiosettings.h
+++ b/plugins/webradioplugin/webradiosettings.h
@@ -1,5 +1,4 @@
-#ifndef WEBRADIOSETTINGS_H
-#define WEBRADIOSETTINGS_H
+#pragma once
 
 #include <QObject>
 #include <QUrl>
@@ -39,5 +38,3 @@ private:
     static const QStringList m_defaultUrls;
     static const int m_defaultVolume;
 };
-
-#endif // WEBRADIOSETTINGS_H
diff --git a/plugins/webradioplugin/webradiosettingswidget.h b/plugins/webradioplugin/webradiosettingswidget.h
index 1499985..d1f77dc 100644
--- a/plugins/webradioplugin/webradiosettingswidget.h
+++ b/plugins/webradioplugin/webradiosettingswidget.h
@@ -1,5 +1,4 @@
-#ifndef WEBRADIOSETTINGSWIDGET_H
-#define WEBRADIOSETTINGSWIDGET_H
+#pragma once
 
 #include <QWidget>
 
@@ -28,5 +27,3 @@ private:
 
     QStringListWidget *m_urlsWidget;
 };
-
-#endif // WEBRADIOSETTINGSWIDGET_H
diff --git a/zeiterfassungguilib/settingswidget.h b/zeiterfassungguilib/settingswidget.h
index ed671be..7b21ff2 100644
--- a/zeiterfassungguilib/settingswidget.h
+++ b/zeiterfassungguilib/settingswidget.h
@@ -1,5 +1,4 @@
-#ifndef SETTINGSWIDGET_H
-#define SETTINGSWIDGET_H
+#pragma once
 
 #include <QObject>
 #include <QWidget>
@@ -18,5 +17,3 @@ public:
 public Q_SLOTS:
     virtual void apply() { }
 };
-
-#endif // SETTINGSWIDGET_H