diff --git a/app/common/qtutils.h b/app/common/qtutils.h
index e50f35f07..b4c511167 100644
--- a/app/common/qtutils.h
+++ b/app/common/qtutils.h
@@ -33,6 +33,10 @@
 
 #include "common/define.h"
 
+#ifdef MessageBox
+#undef MessageBox
+#endif
+
 namespace olive {
 
 class QtUtils {