diff --git a/webapp/public/locales/en/main.json b/webapp/public/locales/en/main.json
index 0c7a27dc7e..55a60ae4a8 100644
--- a/webapp/public/locales/en/main.json
+++ b/webapp/public/locales/en/main.json
@@ -409,7 +409,7 @@
   "study.configuration.geographicTrimmingLinks": "Geographic Trimming (Links)",
   "study.configuration.geographicTrimmingBindingConstraints": "Geographic Trimming (Binding Constraints)",
   "study.modelization.properties": "Properties",
-  "study.modelization.properties.energyCost": "Energy cost (€/Wh)",
+  "study.modelization.properties.energyCost": "Energy cost (€/MWh)",
   "study.modelization.properties.unsupplied": "Unsupplied",
   "study.modelization.properties.spilled": "Spilled",
   "study.modelization.properties.lastResortShedding": "Last resort shedding status",
diff --git a/webapp/public/locales/fr/main.json b/webapp/public/locales/fr/main.json
index ed667e5be3..cf34d3599e 100644
--- a/webapp/public/locales/fr/main.json
+++ b/webapp/public/locales/fr/main.json
@@ -409,7 +409,7 @@
   "study.configuration.geographicTrimmingLinks": "Filtre géographique (liens)",
   "study.configuration.geographicTrimmingBindingConstraints": "Filtre géographique (contraintes couplantes)",
   "study.modelization.properties": "Propriétés",
-  "study.modelization.properties.energyCost": "Coût de l'énergie",
+  "study.modelization.properties.energyCost": "Coût de l'énergie (€/MWh)",
   "study.modelization.properties.unsupplied": "Non distribuée",
   "study.modelization.properties.spilled": "Non évacuée",
   "study.modelization.properties.lastResortShedding": "Moyen de dernier recours pour l'écrêtement",