diff --git a/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp b/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp
index 2df32a624b..a853a227c6 100644
--- a/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp
@@ -2108,6 +2108,12 @@ void RimEnsembleCurveSet::updateEnsembleCurves( const std::vector<RimSummaryCase
             if ( !m_plotCurveForLegendText )
             {
                 m_plotCurveForLegendText.reset( plot->plotWidget()->createPlotCurve( nullptr, "" ) );
+
+                int curveThickness = 3;
+                m_plotCurveForLegendText->setAppearance( RiuQwtPlotCurveDefines::LineStyleEnum::STYLE_SOLID,
+                                                         RiuQwtPlotCurveDefines::CurveInterpolationEnum::INTERPOLATION_POINT_TO_POINT,
+                                                         curveThickness,
+                                                         RiaColorTools::toQColor( m_mainEnsembleColor() ) );
             }
             m_plotCurveForLegendText->attachToPlot( plot->plotWidget() );
             updateEnsembleLegendItem();
@@ -2449,27 +2455,25 @@ void RimEnsembleCurveSet::updateEnsembleLegendItem()
 
     m_plotCurveForLegendText->setTitle( name() );
 
+    RiuPlotCurveSymbol* symbol = m_plotCurveForLegendText->createSymbol( RiuPlotCurveSymbol::SYMBOL_NONE );
+
+    if ( RimEnsembleCurveSetColorManager::hasSameColorForAllRealizationCurves( m_colorMode() ) )
     {
-        RiuPlotCurveSymbol* symbol = m_plotCurveForLegendText->createSymbol( RiuPlotCurveSymbol::SYMBOL_CROSS );
+        QColor curveColor = mainEnsembleColor();
+        QPen   curvePen( curveColor );
+        curvePen.setWidth( 2 );
 
-        if ( RimEnsembleCurveSetColorManager::hasSameColorForAllRealizationCurves( m_colorMode() ) )
-        {
-            QColor curveColor = mainEnsembleColor();
-            QPen   curvePen( curveColor );
-            curvePen.setWidth( 2 );
-
-            symbol->setPen( curvePen );
-            symbol->setSize( 6, 6 );
-        }
-        else if ( m_colorMode == ColorMode::BY_ENSEMBLE_PARAM )
-        {
-            QPixmap p = QPixmap( ":/Legend.png" );
-            symbol->setPixmap( p );
-            symbol->setSize( 8, 8 );
-        }
-
-        m_plotCurveForLegendText->setSymbol( symbol );
+        symbol->setPen( curvePen );
+        symbol->setSize( 6, 6 );
     }
+    else if ( m_colorMode == ColorMode::BY_ENSEMBLE_PARAM )
+    {
+        QPixmap p = QPixmap( ":/Legend.png" );
+        symbol->setPixmap( p );
+        symbol->setSize( 8, 8 );
+    }
+
+    m_plotCurveForLegendText->setSymbol( symbol );
 
     bool showLegendItem = isCurvesVisible();
     m_plotCurveForLegendText->setVisibleInLegend( showLegendItem );