diff --git a/src/controls/private/QskLevelingSensorNodes.h b/src/controls/private/QskLevelingSensorNodes.h
index ff58db24..76bd8db1 100644
--- a/src/controls/private/QskLevelingSensorNodes.h
+++ b/src/controls/private/QskLevelingSensorNodes.h
@@ -6,6 +6,7 @@
 #include <QskScaleTickmarks.h>
 #include <QskAspect.h>
 #include <QskTextNode.h>
+#include <QskSkinnable.h>
 
 #include <QSGFlatColorMaterial>
 #include <QSGGeometry>
@@ -14,8 +15,6 @@
 #include <QFontMetricsF>
 #include <qmath.h>
 
-class QskSkinnable;
-
 class RadialTickmarksNode final : public QSGGeometryNode
 {
   public: