diff --git a/src/types.ts b/src/types.ts
index 104c985..7cf1d66 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -347,7 +347,7 @@ export type BlockValueProp<T> = Extract<BlockValueType, { type: T }>;
 export interface CustomBlockComponentProps<T extends BlockValueTypeKeys> {
   renderComponent: () => JSX.Element | null;
   blockMap: BlockMapType;
-  blockValue: T extends BlockValueType ? BlockValueProp<T> : BaseValueType;
+  blockValue: T extends BlockValueTypeKeys ? BlockValueProp<T> : BaseValueType;
   level: number;
 }