diff --git a/src/imports/controls-private/extensions/fluiddecorationv1.h b/src/imports/controls-private/extensions/fluiddecorationv1.h
index 4e6211cf..9deba253 100644
--- a/src/imports/controls-private/extensions/fluiddecorationv1.h
+++ b/src/imports/controls-private/extensions/fluiddecorationv1.h
@@ -2,8 +2,7 @@
 //
 // SPDX-License-Identifier: MPL-2.0
 
-#ifndef FLUIDDECORATIONV1_H
-#define FLUIDDECORATIONV1_H
+#pragma once
 
 #include <QMap>
 #include <QWindow>
@@ -56,4 +55,3 @@ class FluidDecoration : public QWaylandClientExtensionTemplate<FluidDecoration>
     QColor m_bgColor = Qt::transparent;
 };
 
-#endif // FLUIDDECORATIONV1_H
diff --git a/src/imports/controls-private/windowdecoration.h b/src/imports/controls-private/windowdecoration.h
index 2dbe382c..faeb65ed 100644
--- a/src/imports/controls-private/windowdecoration.h
+++ b/src/imports/controls-private/windowdecoration.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef WINDOWDECORATION_H
-#define WINDOWDECORATION_H
+#pragma once
 
 #include <QObject>
 #include <QColor>
@@ -69,4 +68,3 @@ private Q_SLOTS:
 #endif
 };
 
-#endif // WINDOWDECORATION_H
diff --git a/src/imports/controls/color.h b/src/imports/controls/color.h
index a14c35d9..cc048951 100644
--- a/src/imports/controls/color.h
+++ b/src/imports/controls/color.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef COLOR_H
-#define COLOR_H
+#pragma once
 
 #include <QColor>
 #include <QObject>
@@ -37,4 +36,3 @@ class Color : public QObject
     static Color *create(QQmlEngine *engine, QJSEngine *jsEngine);
 };
 
-#endif // COLOR_H
diff --git a/src/imports/controls/controlsutils.h b/src/imports/controls/controlsutils.h
index 17908b8d..94b139a2 100644
--- a/src/imports/controls/controlsutils.h
+++ b/src/imports/controls/controlsutils.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef CONTROLSUTILS_H
-#define CONTROLSUTILS_H
+#pragma once
 
 #include <QObject>
 #include <QUrl>
@@ -35,4 +34,3 @@ class ControlsUtils : public QObject
     QUrl m_baseUrl;
 };
 
-#endif // CONTROLSUTILS_H
diff --git a/src/imports/controls/inputregion.h b/src/imports/controls/inputregion.h
index 2b525a23..73fb4405 100644
--- a/src/imports/controls/inputregion.h
+++ b/src/imports/controls/inputregion.h
@@ -2,8 +2,7 @@
 //
 // SPDX-License-Identifier: MPL-2.0
 
-#ifndef INPUTREGION_H
-#define INPUTREGION_H
+#pragma once
 
 #include <QQmlEngine>
 #include <QQmlListProperty>
@@ -110,4 +109,3 @@ private Q_SLOTS:
     void setInputRegion();
 };
 
-#endif // INPUTREGION_H
diff --git a/src/imports/core/clipboard.h b/src/imports/core/clipboard.h
index 6248aced..401ef4e7 100644
--- a/src/imports/core/clipboard.h
+++ b/src/imports/core/clipboard.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef CLIPBOARD_H
-#define CLIPBOARD_H
+#pragma once
 
 #include <QObject>
 #include <QClipboard>
@@ -41,4 +40,3 @@ public Q_SLOTS:
     QClipboard *m_clipboard = nullptr;
 };
 
-#endif // CLIPBOARD_H
diff --git a/src/imports/core/coreutils.h b/src/imports/core/coreutils.h
index c70aa4eb..55eb6f29 100644
--- a/src/imports/core/coreutils.h
+++ b/src/imports/core/coreutils.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef COREUTILS_H
-#define COREUTILS_H
+#pragma once
 
 #include <QObject>
 #include <QUrl>
@@ -32,4 +31,3 @@ class CoreUtils : public QObject
     static CoreUtils *create(QQmlEngine *engine, QJSEngine *jsEngine);
 };
 
-#endif // COREUTILS_H
diff --git a/src/imports/core/dateutils.h b/src/imports/core/dateutils.h
index 036f4da7..5ce28c96 100644
--- a/src/imports/core/dateutils.h
+++ b/src/imports/core/dateutils.h
@@ -13,8 +13,7 @@
  * $END_LICENSE$
  */
 
-#ifndef DATEUTILS_H
-#define DATEUTILS_H
+#pragma once
 
 #include <QObject>
 #include <QDate>
@@ -45,4 +44,3 @@ class DateUtils : public QObject
     static DateUtils *create(QQmlEngine *engine, QJSEngine *jsEngine);
 };
 
-#endif // DATEUTILS_H
diff --git a/src/imports/core/device.h b/src/imports/core/device.h
index f96a57e9..b6d0f16f 100644
--- a/src/imports/core/device.h
+++ b/src/imports/core/device.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef DEVICE_H
-#define DEVICE_H
+#pragma once
 
 #include <QObject>
 
@@ -66,4 +65,3 @@ private Q_SLOTS:
     QScreen *m_screen;
 };
 
-#endif // DEVICE_H
diff --git a/src/imports/core/standardpaths.h b/src/imports/core/standardpaths.h
index 5570ff9d..139c4c61 100644
--- a/src/imports/core/standardpaths.h
+++ b/src/imports/core/standardpaths.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef STANDARDPATHS_H
-#define STANDARDPATHS_H
+#pragma once
 
 #include <QObject>
 #include <QQmlEngine>
@@ -53,4 +52,3 @@ class StandardPaths : public QObject
     static StandardPaths *create(QQmlEngine *engine, QJSEngine *jsEngine);
 };
 
-#endif // STANDARDPATHS_H
diff --git a/src/imports/templates/datepicker.h b/src/imports/templates/datepicker.h
index e2262cd7..0ed0d82d 100644
--- a/src/imports/templates/datepicker.h
+++ b/src/imports/templates/datepicker.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef DATEPICKER_H
-#define DATEPICKER_H
+#pragma once
 
 #include <QDate>
 #include <QQmlEngine>
@@ -76,4 +75,3 @@ class DatePicker : public Picker
     QDate m_selectedDate;
 };
 
-#endif // DATEPICKER_H
diff --git a/src/imports/templates/dateselector.h b/src/imports/templates/dateselector.h
index ea6661ac..37b2ffa7 100644
--- a/src/imports/templates/dateselector.h
+++ b/src/imports/templates/dateselector.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef DATESELECTOR_H
-#define DATESELECTOR_H
+#pragma once
 
 #include <QDate>
 #include <QQuickItem>
@@ -92,4 +91,3 @@ private Q_SLOTS:
 
 QML_DECLARE_TYPE(DateSelector)
 
-#endif // DATESELECTOR_H
diff --git a/src/imports/templates/datetimepicker.h b/src/imports/templates/datetimepicker.h
index 40c9e5d9..31a2b528 100644
--- a/src/imports/templates/datetimepicker.h
+++ b/src/imports/templates/datetimepicker.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef DATETIMEPICKER_H
-#define DATETIMEPICKER_H
+#pragma once
 
 #include <QDateTime>
 
@@ -84,4 +83,3 @@ class DateTimePicker : public Picker
     QDateTime m_selectedDateTime;
 };
 
-#endif // DATETIMEPICKER_H
diff --git a/src/imports/templates/picker.h b/src/imports/templates/picker.h
index 7460a60d..2daa74b5 100644
--- a/src/imports/templates/picker.h
+++ b/src/imports/templates/picker.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef PICKER_H
-#define PICKER_H
+#pragma once
 
 #include <QLocale>
 #include <QQuickItem>
@@ -83,4 +82,3 @@ class Picker : public QQuickItem
     void updateLayout();
 };
 
-#endif // PICKER_H
diff --git a/src/imports/templates/timepicker.h b/src/imports/templates/timepicker.h
index 507085b9..07bab3d7 100644
--- a/src/imports/templates/timepicker.h
+++ b/src/imports/templates/timepicker.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef TIMEPICKER_H
-#define TIMEPICKER_H
+#pragma once
 
 #include <QTime>
 #include <QQmlEngine>
@@ -46,4 +45,3 @@ class TimePicker : public Picker
 
 QML_DECLARE_TYPE(TimePicker)
 
-#endif // TIMEPICKER_H
diff --git a/src/imports/templates/timeselector.h b/src/imports/templates/timeselector.h
index ffbec2e0..d3f30678 100644
--- a/src/imports/templates/timeselector.h
+++ b/src/imports/templates/timeselector.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef TIMESELECTOR_H
-#define TIMESELECTOR_H
+#pragma once
 
 #include <QQuickItem>
 #include <QTime>
@@ -76,4 +75,3 @@ class TimeSelector : public QQuickItem
 
 QML_DECLARE_TYPE(TimeSelector)
 
-#endif // TIMESELECTOR_H
diff --git a/src/imports/templates/yearmodel.h b/src/imports/templates/yearmodel.h
index b4ff5a47..e4f3c9e8 100644
--- a/src/imports/templates/yearmodel.h
+++ b/src/imports/templates/yearmodel.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef YEARMODEL_H
-#define YEARMODEL_H
+#pragma once
 
 #include <QAbstractListModel>
 #include <QDate>
@@ -58,4 +57,3 @@ class YearModel : public QAbstractListModel
 
 QML_DECLARE_TYPE(YearModel)
 
-#endif // YEARMODEL_H
diff --git a/src/imports/templates/yearselector.h b/src/imports/templates/yearselector.h
index 209a357f..81ba9088 100644
--- a/src/imports/templates/yearselector.h
+++ b/src/imports/templates/yearselector.h
@@ -12,8 +12,7 @@
  * $END_LICENSE$
  */
 
-#ifndef YEARSELECTOR_H
-#define YEARSELECTOR_H
+#pragma once
 
 #include <QDate>
 #include <QQuickItem>
@@ -83,4 +82,3 @@ class YearSelector : public QQuickItem
 
 QML_DECLARE_TYPE(YearSelector)
 
-#endif // YEARSELECTOR_H