diff --git a/src/controls/QskFlickAnimator.h b/src/controls/QskFlickAnimator.h
index 92dce7d3..e9168383 100644
--- a/src/controls/QskFlickAnimator.h
+++ b/src/controls/QskFlickAnimator.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_FLICK_ANIMATOR_H
-#define QSK_FLICK_ANIMATOR_H 1
+#define QSK_FLICK_ANIMATOR_H
 
 #include "QskAnimator.h"
 
diff --git a/src/controls/QskInputGrabber.h b/src/controls/QskInputGrabber.h
index 6e1a77b7..b13bc5ec 100644
--- a/src/controls/QskInputGrabber.h
+++ b/src/controls/QskInputGrabber.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_INPUT_GRABBER_H
-#define QSK_INPUT_GRABBER_H 1
+#define QSK_INPUT_GRABBER_H
 
 #include "QskControl.h"
 
diff --git a/src/controls/QskObjectTree.h b/src/controls/QskObjectTree.h
index f8c3e757..c805e5b8 100644
--- a/src/controls/QskObjectTree.h
+++ b/src/controls/QskObjectTree.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_OBJECT_TREE_H
-#define QSK_OBJECT_TREE_H 1
+#define QSK_OBJECT_TREE_H
 
 #include "QskControl.h"
 #include "QskWindow.h"
diff --git a/src/controls/QskQuick.h b/src/controls/QskQuick.h
index 1fa917e5..74d29b6b 100644
--- a/src/controls/QskQuick.h
+++ b/src/controls/QskQuick.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_QUICK_H
-#define QSK_QUICK_H 1
+#define QSK_QUICK_H
 
 #include "QskGlobal.h"
 #include <qnamespace.h>
diff --git a/src/controls/QskSubWindow.h b/src/controls/QskSubWindow.h
index aa8d5243..d13d5765 100644
--- a/src/controls/QskSubWindow.h
+++ b/src/controls/QskSubWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_SUB_WINDOW_H
-#define QSK_SUB_WINDOW_H 1
+#define QSK_SUB_WINDOW_H
 
 #include "QskPopup.h"
 
diff --git a/src/controls/QskSubWindowArea.h b/src/controls/QskSubWindowArea.h
index e381c501..3cbc30d3 100644
--- a/src/controls/QskSubWindowArea.h
+++ b/src/controls/QskSubWindowArea.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_SUB_WINDOW_AREA_H
-#define QSK_SUB_WINDOW_AREA_H 1
+#define QSK_SUB_WINDOW_AREA_H
 
 #include "QskControl.h"
 
diff --git a/src/controls/QskWindow.h b/src/controls/QskWindow.h
index 8a2a158f..da425752 100644
--- a/src/controls/QskWindow.h
+++ b/src/controls/QskWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_WINDOW_H
-#define QSK_WINDOW_H 1
+#define QSK_WINDOW_H
 
 #include "QskGlobal.h"
 #include <qquickwindow.h>
diff --git a/src/dialogs/QskDialog.h b/src/dialogs/QskDialog.h
index 980cd44b..25e13c6f 100644
--- a/src/dialogs/QskDialog.h
+++ b/src/dialogs/QskDialog.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_DIALOG_H
-#define QSK_DIALOG_H 1
+#define QSK_DIALOG_H
 
 #include "QskGlobal.h"
 
diff --git a/src/dialogs/QskDialogSubWindow.h b/src/dialogs/QskDialogSubWindow.h
index 8d66471d..278ca5d7 100644
--- a/src/dialogs/QskDialogSubWindow.h
+++ b/src/dialogs/QskDialogSubWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_DIALOG_SUB_WINDOW_H
-#define QSK_DIALOG_SUB_WINDOW_H 1
+#define QSK_DIALOG_SUB_WINDOW_H
 
 #include "QskDialog.h"
 #include "QskSubWindow.h"
diff --git a/src/dialogs/QskDialogWindow.h b/src/dialogs/QskDialogWindow.h
index ad9d15ae..3131be5b 100644
--- a/src/dialogs/QskDialogWindow.h
+++ b/src/dialogs/QskDialogWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_DIALOG_WINDOW_H
-#define QSK_DIALOG_WINDOW_H 1
+#define QSK_DIALOG_WINDOW_H
 
 #include "QskDialog.h"
 #include "QskWindow.h"
diff --git a/src/dialogs/QskMessageSubWindow.h b/src/dialogs/QskMessageSubWindow.h
index 1d98232d..7a34cb18 100644
--- a/src/dialogs/QskMessageSubWindow.h
+++ b/src/dialogs/QskMessageSubWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_MESSAGE_SUB_WINDOW_H
-#define QSK_MESSAGE_SUB_WINDOW_H 1
+#define QSK_MESSAGE_SUB_WINDOW_H
 
 #include "QskDialogSubWindow.h"
 
diff --git a/src/dialogs/QskMessageWindow.h b/src/dialogs/QskMessageWindow.h
index 7fb40058..6fa68b1c 100644
--- a/src/dialogs/QskMessageWindow.h
+++ b/src/dialogs/QskMessageWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_MESSAGE_WINDOW_H
-#define QSK_MESSAGE_WINDOW_H 1
+#define QSK_MESSAGE_WINDOW_H
 
 #include "QskDialogWindow.h"
 
diff --git a/src/dialogs/QskSelectionSubWindow.h b/src/dialogs/QskSelectionSubWindow.h
index 5259c7df..7ab602de 100644
--- a/src/dialogs/QskSelectionSubWindow.h
+++ b/src/dialogs/QskSelectionSubWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_SELECTION_SUB_WINDOW_H
-#define QSK_SELECTION_SUB_WINDOW_H 1
+#define QSK_SELECTION_SUB_WINDOW_H
 
 #include "QskDialogSubWindow.h"
 
diff --git a/src/dialogs/QskSelectionWindow.h b/src/dialogs/QskSelectionWindow.h
index dc13a322..0b279e87 100644
--- a/src/dialogs/QskSelectionWindow.h
+++ b/src/dialogs/QskSelectionWindow.h
@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #ifndef QSK_SELECTION_WINDOW_H
-#define QSK_SELECTION_WINDOW_H 1
+#define QSK_SELECTION_WINDOW_H
 
 #include "QskDialogWindow.h"