diff --git a/vzdv-site/templates/changelog.jinja b/vzdv-site/templates/changelog.jinja
index 965f238..8076ecd 100644
--- a/vzdv-site/templates/changelog.jinja
+++ b/vzdv-site/templates/changelog.jinja
@@ -20,6 +20,7 @@
     <div class="card-text">
       <ul>
         <li>Fixed some not-logged-in wording</li>
+        <li>Fixed spot-update activity counting other facility controlling and observers (true-up activity for CoTM/etc. not affected)</li>
       </ul>
     </div>
   </div>
diff --git a/vzdv-tasks/src/activity.rs b/vzdv-tasks/src/activity.rs
index e45682a..2dd7be0 100644
--- a/vzdv-tasks/src/activity.rs
+++ b/vzdv-tasks/src/activity.rs
@@ -149,6 +149,10 @@ pub async fn update_online_controller_activity(config: &Config, db: &Pool<Sqlite
         if !on_roster_cids.contains(&cid) {
             continue;
         }
+        if !position_in_facility_airspace(config, &controller.callsign) {
+            // ignore controlling in other facilities and observers
+            continue;
+        }
         debug!("Spot-updating activity for {cid}");
         if let Err(e) =
             update_single_activity(config, db, &start_of_month, cid, &controller.logon_time).await