diff --git a/src/controls/QskRangeControl.cpp b/src/controls/QskRangeControl.cpp
index eb4277ad..51a6637a 100644
--- a/src/controls/QskRangeControl.cpp
+++ b/src/controls/QskRangeControl.cpp
@@ -223,7 +223,7 @@ void QskRangeControl::setReadOnly( bool readOnly )
     // we are killing user settings here !!
     setFocusPolicy( readOnly ? Qt::NoFocus : Qt::StrongFocus );
     setAcceptedMouseButtons( readOnly ? Qt::NoButton : Qt::LeftButton );
-    setWheelEnabled( m_data->readOnly );
+    setWheelEnabled( !m_data->readOnly );
 
     Q_EMIT readOnlyChanged( readOnly );
 }