diff --git a/rtengine/procparams.cc b/rtengine/procparams.cc
index c886477c0..a0873c767 100644
--- a/rtengine/procparams.cc
+++ b/rtengine/procparams.cc
@@ -2369,8 +2369,7 @@ LocallabParams::LocallabSpot::LocallabSpot() :
     LHcurve{(double)FCT_MinMaxCPoints, 0.0, 0.50, 0.35, 0.35, 0.166, 0.50, 0.35, 0.35, 0.333, 0.50, 0.35, 0.35, 0.50, 0.50, 0.35, 0.35, 0.666, 0.50, 0.35, 0.35, 0.833, 0.50, 0.35, 0.35},
     HHcurve{(double)FCT_MinMaxCPoints, 0.0, 0.50, 0.35, 0.35, 0.166, 0.50, 0.35, 0.35, 0.333, 0.50, 0.35, 0.35, 0.50, 0.50, 0.35, 0.35, 0.666, 0.50, 0.35, 0.35, 0.833, 0.50, 0.35, 0.35},
     CCmaskcurve{(double)FCT_MinMaxCPoints, 0., 1., 0.35, 0.35, 1., 1., 0.35, 0.35},
-    LLmaskcurve{(double)FCT_MinMaxCPoints, 0., 1., 0.35, 0.35, 1., 1., 0.35, 0.35},
-
+    LLmaskcurve{(double)FCT_MinMaxCPoints, 0.166, 1., 0.35, 0.35, 0.82, 1., 0.35, 0.35},
     invers(false),
     // Exposure
     expexpose(false),
diff --git a/rtgui/locallab.cc b/rtgui/locallab.cc
index c28e2f935..ff997e2a5 100644
--- a/rtgui/locallab.cc
+++ b/rtgui/locallab.cc
@@ -298,9 +298,10 @@ Locallab::Locallab():
 
     LLmaskshape = static_cast<FlatCurveEditor*>(maskCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false));
     LLmaskshape->setIdentityValue(0.);
-    LLmaskshape->setResetCurve(FlatCurveType(defSpot.CCmaskcurve.at(0)), defSpot.CCmaskcurve);
+    LLmaskshape->setResetCurve(FlatCurveType(defSpot.LLmaskcurve.at(0)), defSpot.LLmaskcurve);
     LLmaskshape->setTooltip(M("TP_LOCALLAB_CURVEEDITOR_CC_TOOLTIP"));
-    LLmaskshape->setBottomBarBgGradient(mllshape);
+ //   LLmaskshape->setBottomBarBgGradient(mllshape);
+    
 
     maskCurveEditorG->curveListComplete();
     
@@ -384,10 +385,11 @@ Locallab::Locallab():
     CCmaskexpshape->setResetCurve(FlatCurveType(defSpot.CCmaskexpcurve.at(0)), defSpot.CCmaskexpcurve);
     CCmaskexpshape->setTooltip(M("TP_LOCALLAB_CURVEEDITOR_CC_TOOLTIP"));
     CCmaskexpshape->setBottomBarColorProvider(this, 7);
+    const ColorToningParams default_params;
 
     LLmaskexpshape = static_cast<FlatCurveEditor*>(maskexpCurveEditorG->addCurve(CT_Flat, "L(L)", nullptr, false, false));
     LLmaskexpshape->setIdentityValue(0.);
-    LLmaskexpshape->setResetCurve(FlatCurveType(defSpot.CCmaskexpcurve.at(0)), defSpot.CCmaskexpcurve);
+    LLmaskexpshape->setResetCurve(FlatCurveType(defSpot.LLmaskexpcurve.at(0)), defSpot.LLmaskexpcurve);   
     LLmaskexpshape->setTooltip(M("TP_LOCALLAB_CURVEEDITOR_CC_TOOLTIP"));
     LLmaskexpshape->setBottomBarBgGradient(mllshape);