diff --git a/rtdata/languages/default b/rtdata/languages/default
index b6e901bf4..262e51540 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -3321,8 +3321,8 @@ TP_WAVELET_SUPE;Extra
 TP_WAVELET_THR;Shadows threshold
 TP_WAVELET_THRESHOLD;Finer levels
 TP_WAVELET_THRESHOLD2;Coarser levels
-TP_WAVELET_THRESHOLD_TOOLTIP;Only levels beyond the chosen value will be affected by the highlight luminance range. 
-TP_WAVELET_THRESHOLD2_TOOLTIP;Only levels above the chosen value and selected 'wavelet levels' will be affected by the shadow luminance range.
+TP_WAVELET_THRESHOLD_TOOLTIP;Only levels below and including the chosen value will be affected by the Highlight luminance range. 
+TP_WAVELET_THRESHOLD2_TOOLTIP;Only levels from the chosen value to the selected number of ‘wavelet levels’ will be affected by the Shadow luminance range.
 TP_WAVELET_THRESWAV;Balance Threshold
 TP_WAVELET_THRH;Highlights threshold
 TP_WAVELET_TILESBIG;Tiles