diff --git a/src/gui/raster/qgsrasterminmaxwidget.cpp b/src/gui/raster/qgsrasterminmaxwidget.cpp
index db48786406c..b15b82ace56 100644
--- a/src/gui/raster/qgsrasterminmaxwidget.cpp
+++ b/src/gui/raster/qgsrasterminmaxwidget.cpp
@@ -16,6 +16,7 @@
  ***************************************************************************/
 
 #include <QSettings>
+#include <QMessageBox>
 
 #include "qgsrasterlayer.h"
 #include "qgsrasterminmaxwidget.h"
@@ -28,10 +29,21 @@ QgsRasterMinMaxWidget::QgsRasterMinMaxWidget( QgsRasterLayer* theLayer, QWidget
   setupUi( this );
 
   QSettings mySettings;
+
+  // set contrast enhancement setting to default
+  // ideally we should set it actual method last used to get min/max, but there is no way to know currently
+  QString contrastEnchacementLimits = mySettings.value( "/Raster/defaultContrastEnhancementLimits", "CumulativeCut" ).toString();
+  if ( contrastEnchacementLimits == "MinMax" )
+    mMinMaxRadioButton->setChecked( true );
+  else if ( contrastEnchacementLimits == "StdDev" )
+    mStdDevRadioButton->setChecked( true );
+
   double myLower = 100.0 * mySettings.value( "/Raster/cumulativeCutLower", QString::number( QgsRasterLayer::CUMULATIVE_CUT_LOWER ) ).toDouble();
   double myUpper = 100.0 * mySettings.value( "/Raster/cumulativeCutUpper", QString::number( QgsRasterLayer::CUMULATIVE_CUT_UPPER ) ).toDouble();
   mCumulativeCutLowerDoubleSpinBox->setValue( myLower );
   mCumulativeCutUpperDoubleSpinBox->setValue( myUpper );
+
+  mStdDevSpinBox->setValue( mySettings.value( "/Raster/defaultStandardDeviation", 2.0 ).toDouble() );
 }
 
 QgsRasterMinMaxWidget::~QgsRasterMinMaxWidget()
@@ -99,6 +111,11 @@ void QgsRasterMinMaxWidget::on_mLoadPushButton_clicked()
       myMax = myRasterBandStats.mean + ( myStdDev * myRasterBandStats.stdDev );
       origin |= QgsRasterRenderer::MinMaxStdDev;
     }
+    else
+    {
+      QMessageBox::warning( this, tr( "No option selected" ), tr( "Please select an option to load min/max values." ) );
+      return;
+    }
 
     emit load( myBand, myMin, myMax, origin );
   }
diff --git a/src/ui/qgsrasterminmaxwidgetbase.ui b/src/ui/qgsrasterminmaxwidgetbase.ui
index 7815e4799f9..0fb2a8ad253 100644
--- a/src/ui/qgsrasterminmaxwidgetbase.ui
+++ b/src/ui/qgsrasterminmaxwidgetbase.ui
@@ -37,6 +37,9 @@ count cut</string>
           <property name="checked">
            <bool>true</bool>
           </property>
+          <attribute name="buttonGroup">
+           <string notr="true">buttonGroup</string>
+          </attribute>
          </widget>
         </item>
         <item>
@@ -89,6 +92,9 @@ count cut</string>
           <property name="text">
            <string>Min / max</string>
           </property>
+          <attribute name="buttonGroup">
+           <string notr="true">buttonGroup</string>
+          </attribute>
          </widget>
         </item>
         <item>
@@ -114,6 +120,9 @@ count cut</string>
            <string>Mean +/-
 standard deviation ×</string>
           </property>
+          <attribute name="buttonGroup">
+           <string notr="true">buttonGroup</string>
+          </attribute>
          </widget>
         </item>
         <item>
@@ -247,4 +256,7 @@ standard deviation ×</string>
  </widget>
  <resources/>
  <connections/>
+ <buttongroups>
+  <buttongroup name="buttonGroup"/>
+ </buttongroups>
 </ui>