diff --git a/src/plugins/tools/view_25d/lay_plugin/layD25View.cc b/src/plugins/tools/view_25d/lay_plugin/layD25View.cc
index 603136699..0300a37f1 100644
--- a/src/plugins/tools/view_25d/lay_plugin/layD25View.cc
+++ b/src/plugins/tools/view_25d/lay_plugin/layD25View.cc
@@ -115,9 +115,7 @@ D25View::menu_activated (const std::string &symbol)
 
 static QString scale_factor_to_string (double f)
 {
-  QString s;
-  s.sprintf ("%.3g", f);
-  return s;
+  return QString (QString::fromUtf8 ("%.3g").arg (f));
 }
 
 void
diff --git a/src/plugins/tools/view_25d/lay_plugin/layD25ViewWidget.cc b/src/plugins/tools/view_25d/lay_plugin/layD25ViewWidget.cc
index 3eb97dfee..f7fc735ad 100644
--- a/src/plugins/tools/view_25d/lay_plugin/layD25ViewWidget.cc
+++ b/src/plugins/tools/view_25d/lay_plugin/layD25ViewWidget.cc
@@ -244,8 +244,13 @@ D25ViewWidget::wheelEvent (QWheelEvent *event)
     return;
   }
 
+#if QT_VERSION >= 0x60000
+  double px = (event->position ().x () - width () / 2) * 2.0 / width ();
+  double py = -(event->position ().y () - height () / 2) * 2.0 / height ();
+#else
   double px = (event->pos ().x () - width () / 2) * 2.0 / width ();
   double py = -(event->pos ().y () - height () / 2) * 2.0 / height ();
+#endif
 
   if (top_view ()) {
 
@@ -389,7 +394,7 @@ D25ViewWidget::mousePressEvent (QMouseEvent *event)
 {
   mp_mode.reset (0);
 
-  if (event->button () == Qt::MidButton) {
+  if (event->button () == Qt::MiddleButton) {
     mp_mode.reset (new D25PanInteractionMode (this, event->pos ()));
   } else if (event->button () == Qt::LeftButton) {
     if (! top_view ()) {
diff --git a/src/plugins/tools/view_25d/lay_plugin/lay_plugin.pro b/src/plugins/tools/view_25d/lay_plugin/lay_plugin.pro
index 2ef786e9b..b05f93e94 100644
--- a/src/plugins/tools/view_25d/lay_plugin/lay_plugin.pro
+++ b/src/plugins/tools/view_25d/lay_plugin/lay_plugin.pro
@@ -25,3 +25,7 @@ SOURCES = \
 
 FORMS = \
   D25View.ui \
+
+greaterThan(QT_MAJOR_VERSION, 5) {
+  QT += openglwidgets
+}
diff --git a/src/plugins/tools/view_25d/view_25d.pro b/src/plugins/tools/view_25d/view_25d.pro
index fe4a52dc7..138f0890d 100644
--- a/src/plugins/tools/view_25d/view_25d.pro
+++ b/src/plugins/tools/view_25d/view_25d.pro
@@ -7,10 +7,6 @@ contains(QT_CONFIG, opengl) {
     SUBDIRS = lay_plugin unit_tests
   }
 
-  greaterThan(QT_MAJOR_VERSION, 5) {
-    QT += openglwidgets
-  }
-
   unit_tests.depends += lay_plugin
 
 }