diff --git a/deck-frontend/deck-v4.6.html b/deck-frontend/deck-v4.6.html
index 97c8260..5f417ca 100644
--- a/deck-frontend/deck-v4.6.html
+++ b/deck-frontend/deck-v4.6.html
@@ -878,8 +878,16 @@ const Utils = {
   },
 
   getCategory(tag) {
-    // Category is determined by the current base being viewed
-    return State.get("base");
+    // Category is determined by the tag's set_hst (parent category MRF)
+    const setHst = tag.set_hst;
+    if (!setHst) return State.get("base");
+
+    // Look up the category tag in hstTags
+    const hstTags = State.get("hstTags");
+    const categoryTag = hstTags.find(t => t.mrf === setHst);
+
+    // Return the ref of the category tag, or fall back to base
+    return categoryTag?.ref || State.get("base");
   },
 
   updateHash() {