diff --git a/apps/api/src/auth/localSession.ts b/apps/api/src/auth/localSession.ts
index 1308e8b..94ad4bc 100644
--- a/apps/api/src/auth/localSession.ts
+++ b/apps/api/src/auth/localSession.ts
@@ -98,9 +98,13 @@ export function clearLocalSessionCookie(c: Context): void {
   deleteCookie(c, COOKIE_NAME, {
     path: '/',
     httpOnly: true,
-    // Use secure:true for delete (browsers only accept the attribute in matching context)
-    // In practice this is safe because logout should happen over HTTPS in production.
-    secure: true,
+    // BL-02: mirror the issue-time `secure` logic. issueLocalSessionCookie sets
+    // secure:false over plain HTTP (non-production), and a browser will REJECT a
+    // Secure delete-cookie sent over HTTP — so a hard-coded secure:true left the
+    // local-session cookie uncleared on every non-HTTPS deployment (local dev and any
+    // HTTP-only self-host), leaving the user "logged in" after logout. Match the
+    // context so the deletion cookie is accepted.
+    secure: process.env.NODE_ENV === 'production',
     sameSite: 'Lax',
   });
 }