diff --git a/YACReaderLibrary/trayhandler.mm b/YACReaderLibrary/trayhandler.mm
index 9c3cce37..c53f0897 100644
--- a/YACReaderLibrary/trayhandler.mm
+++ b/YACReaderLibrary/trayhandler.mm
@@ -1,3 +1,9 @@
+
+#include <QtGlobal>
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+#undef __OBJC_BOOL_IS_BOOL
+#endif
+
 #import <AppKit/AppKit.h>
 #include "trayhandler.h"
 
@@ -8,4 +14,4 @@ void OSXShowDockIcon()
 void OSXHideDockIcon()
 {
     [NSApp setActivationPolicy:NSApplicationActivationPolicyAccessory];
-}
\ No newline at end of file
+}
diff --git a/common/pdf_comic.mm b/common/pdf_comic.mm
index 5cef6e7c..18d3571b 100644
--- a/common/pdf_comic.mm
+++ b/common/pdf_comic.mm
@@ -1,5 +1,9 @@
 #include "pdf_comic.h"
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+#undef __OBJC_BOOL_IS_BOOL
+#endif
+
 #import <AppKit/AppKit.h>
 #import <Foundation/Foundation.h>
 #import <ApplicationServices/ApplicationServices.h>