diff --git a/docs/src/pages/docs/api/acronymizeHangul.en.mdx b/docs/src/pages/docs/api/acronymizeHangul.en.mdx
index 57d026c9..9f2f9007 100644
--- a/docs/src/pages/docs/api/acronymizeHangul.en.mdx
+++ b/docs/src/pages/docs/api/acronymizeHangul.en.mdx
@@ -7,7 +7,7 @@ It receives the Korean sentence and returns the first letter of that Korean sent
 function acronymizeHangul(
   // String consisting of plural nouns (e.g. '버스 충전', '치킨과 맥주')
   hangul: string
-): boolean;
+): string[];
 ```
 
 ```typescript
diff --git a/docs/src/pages/docs/api/acronymizeHangul.ko.mdx b/docs/src/pages/docs/api/acronymizeHangul.ko.mdx
index 908e5251..c1b576a4 100644
--- a/docs/src/pages/docs/api/acronymizeHangul.ko.mdx
+++ b/docs/src/pages/docs/api/acronymizeHangul.ko.mdx
@@ -7,7 +7,7 @@
 function acronymizeHangul( 
   // 복수 명사로 이루어진 문자열 (e.g. '버스 충전', '치킨과 맥주')
   hangul: string
-): boolean;
+): string[];
 ```
 
 ```typescript