diff --git a/index.d.ts b/index.d.ts
index 3430a5f..2a4852b 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -16,13 +16,21 @@ export interface ISearchParserDictionary {
   [key: string]: any;
 }
 
-export interface SearchParserOffset {
-  keyword: string;
-  value?: string;
+export type SearchParserOffset = (SearchParserKeyWordOffset | SearchParserTextOffset) & {
   offsetStart: number;
   offsetEnd: number;
 }
 
+export type SearchParserKeyWordOffset = {
+  keyword: string;
+  value?: string;
+
+}
+
+export type SearchParserTextOffset = {
+  text: string;
+}
+
 export interface SearchParserResult extends ISearchParserDictionary {
   text?: string | string[];
   offsets?: SearchParserOffset[];