diff --git a/src/power-flow-card-plus-config.ts b/src/power-flow-card-plus-config.ts
index 5d132f8..d5a4376 100644
--- a/src/power-flow-card-plus-config.ts
+++ b/src/power-flow-card-plus-config.ts
@@ -90,7 +90,7 @@ interface FossilFuelPercentage extends BaseConfigEntity {
   color_label?: boolean;
   unit_white_space?: boolean;
   calculate_flow_rate?: boolean | number;
-  seconday_info: SecondaryInfoType;
+  secondary_info: SecondaryInfoType;
 }
 
 export type ConfigEntities = {