diff --git a/packages/common/components/src/ui/header/index.tsx b/packages/common/components/src/ui/header/index.tsx
index 33a8f3b13..9d4945a7a 100644
--- a/packages/common/components/src/ui/header/index.tsx
+++ b/packages/common/components/src/ui/header/index.tsx
@@ -284,7 +284,7 @@ export function Header({
                 ref={logoRef}
                 src={getLogoImage()}
                 className="h-[3rem]"
-                alt={`${siteInfo?.siteNm}`}
+                alt={`유역하수도 통합 정보 플랫폼 HASUON - ${siteInfo?.siteNm}`}
                 onLoad={() => {
                   if (logoRef.current) {
                     setLogoWidth(logoRef.current.offsetWidth);