diff --git a/src/laybasic/laybasic/layUtils.cc b/src/laybasic/laybasic/layUtils.cc
index ba6084aad..ff0578027 100644
--- a/src/laybasic/laybasic/layUtils.cc
+++ b/src/laybasic/laybasic/layUtils.cc
@@ -33,7 +33,7 @@ has_gui ()
 {
 #if defined(HAVE_QT)
 #if QT_VERSION < 0x50000
-  return (QApplication::type () != Qt::Tty);
+  return (QApplication::type () != QApplication::Tty);
 #else
   return (dynamic_cast<QGuiApplication *> (QCoreApplication::instance ()) != 0);
 #endif