diff --git a/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts b/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts
index 2599f61ee3..c018640263 100644
--- a/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts
+++ b/src/panels/config/energy/dialogs/dialog-energy-grid-flow-settings.ts
@@ -240,7 +240,7 @@ export class DialogEnergyGridFlowSettings
     this._costStat = null;
     this._source = {
       ...this._source!,
-      number_energy_price: Number(ev.detail.value),
+      number_energy_price: Number((ev.target as any).value),
       entity_energy_price: null,
     };
   }