diff --git a/src/main/resources/templates/common/fragment/my-book/header/my-books-header-middle.html b/src/main/resources/templates/common/fragment/my-book/header/my-books-header-middle.html
index e6a68d4d..c216c1f4 100644
--- a/src/main/resources/templates/common/fragment/my-book/header/my-books-header-middle.html
+++ b/src/main/resources/templates/common/fragment/my-book/header/my-books-header-middle.html
@@ -102,7 +102,7 @@
                 alert('검색어를 입력하세요');
                 event.preventDefault();
             }
-            if (/[^a-zA-Z0-9ㄱ-ㅎㅏ-ㅣ가-힣]/.test(input)) {
+            if (/[^a-zA-Z0-9ㄱ-ㅎㅏ-ㅣ가-힣\s]/.test(input)) {
                 alert('한글, 영문, 숫자만 입력할 수 있습니다');
                 event.preventDefault();
             }