diff --git a/docs/.vuepress/theme/SearchBox.vue b/docs/.vuepress/theme/SearchBox.vue
index d3644ae09f..8d078a39c8 100644
--- a/docs/.vuepress/theme/SearchBox.vue
+++ b/docs/.vuepress/theme/SearchBox.vue
@@ -64,7 +64,9 @@ export default {
         if (res.length >= max) break
         const p = pages[i]
         // filter out results that do not match current version context
-        if (!~p.path.slice(1).indexOf(searchContext)) continue
+        if ( ! p.path.startsWith(searchContext, 1)) {
+          continue;
+        }
         // filter out results that do not match current locale
         if (this.getPageLocalePath(p) !== localePath) continue
         if (matches(p)) {