diff --git a/src/layouts/BlogPost.astro b/src/layouts/BlogPost.astro
index 1d355b6..5f54824 100644
--- a/src/layouts/BlogPost.astro
+++ b/src/layouts/BlogPost.astro
@@ -111,6 +111,7 @@ const breadcrumbJsonLd = {
         {translationUrl && (
           <a
             href={translationUrl}
+            onclick={`try{localStorage.setItem('preferred-lang','${otherLang}')}catch(e){}`}
             class="inline-flex items-center gap-1.5 text-sm text-link hover:underline mb-4"
           >
             {flags[otherLang]} {tOther("lang.switchLabel")}
diff --git a/src/layouts/Note.astro b/src/layouts/Note.astro
index 07b5809..ece3668 100644
--- a/src/layouts/Note.astro
+++ b/src/layouts/Note.astro
@@ -132,6 +132,7 @@ const breadcrumbJsonLd = {
         {translationUrl && (
           <a
             href={translationUrl}
+            onclick={`try{localStorage.setItem('preferred-lang','${otherLang}')}catch(e){}`}
             class="inline-flex items-center gap-1.5 text-sm text-link hover:underline mb-4"
           >
             {flags[otherLang]} {tOther("lang.switchLabel")}