diff --git a/studio-v2/app/vocab-worksheet/page.tsx b/studio-v2/app/vocab-worksheet/page.tsx
index 2a78fd9..854a31c 100644
--- a/studio-v2/app/vocab-worksheet/page.tsx
+++ b/studio-v2/app/vocab-worksheet/page.tsx
@@ -915,6 +915,11 @@ export default function VocabWorksheetPage() {
                     </h1>
                     <p className={`text-sm ${isDark ? 'text-white/60' : 'text-slate-500'}`}>
                       Schulbuchseiten scannen → KI extrahiert Vokabeln → Druckfertige Arbeitsblaetter
+                      {session && (
+                        <span className={`ml-2 font-mono text-xs ${isDark ? 'text-white/40' : 'text-slate-400'}`}>
+                          Session: {session.id.slice(0, 8)}
+                        </span>
+                      )}
                     </p>
                   </div>
               </div>