diff --git a/rtdata/languages/default b/rtdata/languages/default
index 67c633452..99768a559 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -2370,6 +2370,7 @@ TP_LOCALLAB_COMPLEX_TOOLTIP; Allow user to select Local adjustments rubrics.
 TP_LOCALLAB_CONTCOL;Contrast threshold Mask Blur
 TP_LOCALLAB_CONTFRA;Contrast by Level
 TP_LOCALLAB_CONTRAST;Contrast
+TP_LOCALLAB_CONTRASTCURVMASK_TOOLTIP;Main mask contrast control.
 TP_LOCALLAB_CONTRESID;Contrast
 TP_LOCALLAB_CONTTHR;Contrast Threshold
 TP_LOCALLAB_CSTHRESHOLD;Ψ Wavelets Levels 
@@ -2483,8 +2484,9 @@ TP_LOCALLAB_GRIDONE;Color Toning
 TP_LOCALLAB_GRIDTWO;Direct
 TP_LOCALLAB_GUIDBL;Soft radius
 TP_LOCALLAB_GUIDFILTER;Guided filter radius
-TP_LOCALLAB_GUIDFILTER_TOOLTIP;Adapt this values according to images - can reduce or increase artifacts. 
+TP_LOCALLAB_GUIDFILTER_TOOLTIP;Adapt this values according to images - can reduce or increase artifacts.
 TP_LOCALLAB_HIGHMASKCOL;Highlights mask
+TP_LOCALLAB_HHMASK_TOOLTIP;Fine hue adjustments for example for the skin.
 TP_LOCALLAB_HLH;Curves H
 TP_LOCALLAB_IND;Independent (mouse)
 TP_LOCALLAB_INDSL;Independent (mouse + sliders)
@@ -2794,6 +2796,7 @@ TP_LOCALLAB_WAMASKCOL;Ψ Mask Wavelet level
 TP_LOCALLAB_WARM;Warm - Cool & Color artifacts
 TP_LOCALLAB_WARM_TOOLTIP;This slider use Ciecam algorithm and acts as White Balance, it can warm or cool the area selected.\nIt can also in some cases reduce color artifacts.
 TP_LOCALLAB_WAV;Levels local contrast
+TP_LOCALLAB_WAVMASK_TOOLTIP;Allows fine work on mask levels contrasts (structure)
 TP_LOCALLAB_WAVBLUR_TOOLTIP;Performs a blur for each level of decomposition, as well as the residual image.
 TP_LOCALLAB_WAVEDG;Local contrast
 TP_LOCALLAB_WAVCOMP;Compression by Level
diff --git a/rtgui/locallabtools.cc b/rtgui/locallabtools.cc
index b13c03269..4db427eaa 100644
--- a/rtgui/locallabtools.cc
+++ b/rtgui/locallabtools.cc
@@ -898,7 +898,10 @@ void LocallabColor::updateAdviceTooltips(const bool showTooltips)
         blendmaskcol->set_tooltip_text(M("TP_LOCALLAB_BLENDMASK_TOOLTIP"));
         struFrame->set_tooltip_text(M("TP_LOCALLAB_STRUMASK_TOOLTIP"));
         blurFrame->set_tooltip_text(M("TP_LOCALLAB_BLURMASK_TOOLTIP"));
-    } else {
+        maskHCurveEditorG->set_tooltip_text(M("TP_LOCALLAB_HHMASK_TOOLTIP"));
+        mask2CurveEditorGwav->set_tooltip_text(M("TP_LOCALLAB_WAVMASK_TOOLTIP"));
+        mask2CurveEditorG->set_tooltip_text(M("TP_LOCALLAB_CONTRASTCURVMASK_TOOLTIP"));
+        } else {
         exp->set_tooltip_text("");
         lightness->set_tooltip_text("");
         structcol->set_tooltip_text("");
@@ -922,6 +925,9 @@ void LocallabColor::updateAdviceTooltips(const bool showTooltips)
         blendmaskcol->set_tooltip_text(M(""));
         struFrame->set_tooltip_text(M(""));
         blurFrame->set_tooltip_text(M(""));
+        maskHCurveEditorG->set_tooltip_text(M(""));
+        mask2CurveEditorGwav->set_tooltip_text(M(""));
+        mask2CurveEditorG->set_tooltip_text(M(""));
     }
 }
 
@@ -2479,6 +2485,7 @@ void LocallabExposure::updateAdviceTooltips(const bool showTooltips)
         strmaskexp->set_tooltip_text(M("TP_LOCALLAB_GRADGEN_TOOLTIP"));
         Lmaskexpshape->setTooltip(M("TP_LOCALLAB_LMASK_LL_TOOLTIP"));
         blendmaskexp->set_tooltip_text(M("TP_LOCALLAB_BLENDMASK_TOOLTIP"));
+        mask2expCurveEditorG->set_tooltip_text(M("TP_LOCALLAB_CONTRASTCURVMASK_TOOLTIP"));
     } else {
         exp->set_tooltip_text("");
         expMethod->set_tooltip_text("");
@@ -2502,6 +2509,7 @@ void LocallabExposure::updateAdviceTooltips(const bool showTooltips)
         strmaskexp->set_tooltip_text("");
         Lmaskexpshape->setTooltip("");
         blendmaskexp->set_tooltip_text(M(""));
+        mask2expCurveEditorG->set_tooltip_text(M(""));
     }
 }
 
@@ -3496,7 +3504,7 @@ void LocallabShadow::updateAdviceTooltips(const bool showTooltips)
         gamSH->set_tooltip_text(M("TP_LOCALLAB_SHTRC_TOOLTIP"));
         sloSH->set_tooltip_text(M("TP_LOCALLAB_SHTRC_TOOLTIP"));
         blendmaskSH->set_tooltip_text(M("TP_LOCALLAB_BLENDMASK_TOOLTIP"));
-        
+        mask2SHCurveEditorG->set_tooltip_text(M("TP_LOCALLAB_CONTRASTCURVMASK_TOOLTIP"));
     } else {
         exp->set_tooltip_text("");
         strSH->set_tooltip_text("");
@@ -3513,6 +3521,7 @@ void LocallabShadow::updateAdviceTooltips(const bool showTooltips)
         gamSH->set_tooltip_text(M(""));
         sloSH->set_tooltip_text(M(""));
         blendmaskSH->set_tooltip_text(M(""));
+        mask2SHCurveEditorG->set_tooltip_text(M(""));
     }
 }