diff --git a/rtdata/languages/default b/rtdata/languages/default
index 43eda0146..e7836298a 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -1662,7 +1662,7 @@ TP_RETINEX_ITER_TOOLTIP;Simulate a tone-mapping operator\nHigh values increase t
 TP_RETINEX_GRAD;Transmission gradient
 TP_RETINEX_GRAD_TOOLTIP;If slider at 0, all iterations are identical\nIf > 0 Variance and Threshold are reduce when iteration increases and conversely
 TP_RETINEX_GRADS;Strength gradient
-TP_RETINEX_GRAD_TOOLTIP;If slider at 0, all iterations are identical\nIf > 0 Strength is reduce when iteration increases and conversely
+TP_RETINEX_GRADS_TOOLTIP;If slider at 0, all iterations are identical\nIf > 0 Strength is reduce when iteration increases and conversely
 TP_RETINEX_LABEL;Retinex
 TP_RETINEX_LABSPACE;L*a*b*
 TP_RETINEX_LOW;Low