diff --git a/src/features/online-board/components/OnlineBoardFilter.tsx b/src/features/online-board/components/OnlineBoardFilter.tsx
index 14b83c8b..4be9bbc8 100644
--- a/src/features/online-board/components/OnlineBoardFilter.tsx
+++ b/src/features/online-board/components/OnlineBoardFilter.tsx
@@ -303,7 +303,7 @@ export const OnlineBoardFilter: FC<OnlineBoardFilterProps> = ({
               >
                 <span className="p-header">
                   <span>{t("BOARD.FLIGHT_NUMBER")}</span>
-                  <span className={`arrow-icon${activeTab === "flight" ? " arrow-icon--rotated" : ""}`}>
+                  <span className={`arrow-icon${activeTab === "flight" ? " arrow-icon--rotated" : ""}`} aria-hidden="true">
                     <svg viewBox="0 0 12 8" width="12" height="8">
                       <path d="M1 1L6 6L11 1" stroke="currentColor" strokeWidth="1.5" fill="none" />
                     </svg>
@@ -406,7 +406,7 @@ export const OnlineBoardFilter: FC<OnlineBoardFilterProps> = ({
               >
                 <span className="p-header">
                   <span>{t("BOARD.ROUTE")}</span>
-                  <span className={`arrow-icon${activeTab === "route" ? " arrow-icon--rotated" : ""}`}>
+                  <span className={`arrow-icon${activeTab === "route" ? " arrow-icon--rotated" : ""}`} aria-hidden="true">
                     <svg viewBox="0 0 12 8" width="12" height="8">
                       <path d="M1 1L6 6L11 1" stroke="currentColor" strokeWidth="1.5" fill="none" />
                     </svg>