diff --git a/Code/Mantid/MantidPlot/src/ScaleDetails.cpp b/Code/Mantid/MantidPlot/src/ScaleDetails.cpp
index 6fa78d4be4bd973cb9317e358ff6c8d52062bee3..8bdcfec1fa9164358d4f14bf99a4cca2982c6632 100644
--- a/Code/Mantid/MantidPlot/src/ScaleDetails.cpp
+++ b/Code/Mantid/MantidPlot/src/ScaleDetails.cpp
@@ -375,6 +375,7 @@ void ScaleDetails::initWidgets()
       m_chkBreakDecoration->setChecked(sc_engine->hasBreakDecoration());
       m_chkInvert->setChecked(sc_engine->testAttribute(QwtScaleEngine::Inverted));
       m_cmbScaleType->setCurrentItem(scale_type);
+      m_dspnN->setValue(sc_engine->nthPower());
       m_cmbMinorValue->clear();
       if (scale_type == ScaleTransformation::Log10)
       {