diff --git a/frontend/src/app/main/data/workspace/versions.cljs b/frontend/src/app/main/data/workspace/versions.cljs
index 67b10ca760..53d5e262f0 100644
--- a/frontend/src/app/main/data/workspace/versions.cljs
+++ b/frontend/src/app/main/data/workspace/versions.cljs
@@ -274,8 +274,24 @@
             features (features/get-enabled-features state team-id)
             snapshot (->> (dm/get-in state [:workspace-versions :data])
                           (d/seek #(= id (:id %))))
-            label    (or (:label snapshot)
-                         (tr "workspace.versions.preview.unnamed"))
+            ;; Match the History sidebar's identifying text so the
+            ;; preview banner and the sidebar entry "speak the same
+            ;; language" (#9503):
+            ;; - user-created (pinned) versions keep the user's custom
+            ;;   label; if absent, fall back to "unnamed"
+            ;; - system-created autosaves use the same auto-generated
+            ;;   label the sidebar's `snapshot-entry*` already renders
+            ;;   via `workspace.versions.autosaved.version` + a
+            ;;   localized date, instead of the internal snapshot
+            ;;   label (e.g. `internal/snapshot/20`).
+            label    (cond
+                       (= "system" (:created-by snapshot))
+                       (tr "workspace.versions.autosaved.version"
+                           (ct/format-inst (:created-at snapshot) :localized-date))
+
+                       :else
+                       (or (:label snapshot)
+                           (tr "workspace.versions.preview.unnamed")))
             output-s (rx/subject)]
         (rx/merge
          output-s