diff --git a/web/static/js/subject-actions.v1.js b/web/static/js/subject-actions.v1.js
index 18cbaf2..7d691a9 100644
--- a/web/static/js/subject-actions.v1.js
+++ b/web/static/js/subject-actions.v1.js
@@ -113,7 +113,7 @@
 
     // Order: Insight, WOL, Database, Google, Wikipedia — with inline SVG icons
     popupEl.innerHTML =
-      '<div class="hdr"><span>Open subject</span><span class="close-x" aria-label="Close">✕</span></div>' +
+      '<div class="hdr"><span>Research Subject</span><span class="close-x" aria-label="Close">✕</span></div>' +
       '<div class="btn-row">' +
         // Insight Book (green book)
         '<a class="action act-insight" target="_blank" rel="noopener">' +