diff --git a/apps/toolbox.fr.i18n b/apps/toolbox.fr.i18n
index d4457b256..d382f9b49 100644
--- a/apps/toolbox.fr.i18n
+++ b/apps/toolbox.fr.i18n
@@ -311,7 +311,7 @@ UnitOfMesurement = "Unitées de mesure"
 SpeedOfLightTag = "Vitesse de la lumière (en m.s^-1)"
 YearLightTag = "Année lumière (in km)"
 Thermodynamics = "Thermodynamique"
-BoltzmannTag = "Constante de BoltzmannTag (in J.K^-1)"
+BoltzmannTag = "Constante de Boltzmann (in J.K^-1)"
 AvogadroTag = "Constante Avogadro (in mol^-1)"
 GasTag = "Constante Gas (in kJ.K^-1 * mol^-1)"
 Electromagnetism = "Electromagnetisme"