diff --git a/src/controls/QskHintAnimator.cpp b/src/controls/QskHintAnimator.cpp
index e8a700bd..48a9d249 100644
--- a/src/controls/QskHintAnimator.cpp
+++ b/src/controls/QskHintAnimator.cpp
@@ -92,6 +92,11 @@ static inline bool qskCheckReceiverThread( const QObject* receiver )
     return ( thread == QThread::currentThread() );
 }
 
+QskHintAnimator::QskHintAnimator() noexcept
+    : m_index( -1 )
+{
+}
+
 QskHintAnimator::QskHintAnimator( const QskAspect aspect, int index ) noexcept
     : m_aspect( aspect )
     , m_index( index )
diff --git a/src/controls/QskHintAnimator.h b/src/controls/QskHintAnimator.h
index 96a1123b..81d5edd8 100644
--- a/src/controls/QskHintAnimator.h
+++ b/src/controls/QskHintAnimator.h
@@ -19,7 +19,7 @@ class QSK_EXPORT QskHintAnimator : public QskVariantAnimator
     using Inherited = QskVariantAnimator;
 
   public:
-    QskHintAnimator() noexcept = default;
+    QskHintAnimator() noexcept;
     QskHintAnimator( QskAspect, int index ) noexcept;
 
     ~QskHintAnimator() override;
@@ -42,7 +42,7 @@ class QSK_EXPORT QskHintAnimator : public QskVariantAnimator
 
   private:
     QskAspect m_aspect;
-    int m_index = -1;
+    int m_index;
     QskAnimationHint::UpdateFlags m_updateFlags;
     QPointer< QskControl > m_control;
 };