diff --git a/apps/web/Components/Calculation/Form/ELT/Kasko.tsx b/apps/web/Components/Calculation/Form/ELT/Kasko.tsx
index 494f690..58fdab0 100644
--- a/apps/web/Components/Calculation/Form/ELT/Kasko.tsx
+++ b/apps/web/Components/Calculation/Form/ELT/Kasko.tsx
@@ -103,7 +103,7 @@ export const Kasko = observer(() => {
               $tables.elt.kasko.setRow({
                 key,
                 message: error || message,
-                numCalc: 0,
+                numCalc: '0',
                 requestId,
                 skCalcId,
                 status: error ? 'error' : null,