diff --git a/NucleicRemote/NucleicRemote/Models/RemoteStore.swift b/NucleicRemote/NucleicRemote/Models/RemoteStore.swift
index fbc55a8..16f7556 100644
--- a/NucleicRemote/NucleicRemote/Models/RemoteStore.swift
+++ b/NucleicRemote/NucleicRemote/Models/RemoteStore.swift
@@ -1284,7 +1284,9 @@ final class RemoteStore: ObservableObject {
         // A host that dropped should re-register when it returns.
         pushToStartSentTo = pushToStartSentTo.filter { connections[$0]?.connectivity.isLive == true }
         for (id, conn) in connections {
-            guard conn.connectivity.isLive, conn.capabilities.canPushLiveActivity,
+            // Gate on the dedicated push-to-start bit, not `canPushLiveActivity`: an older host can
+            // advertise the latter yet throw on the unknown `registerPushToStartToken` tag.
+            guard conn.connectivity.isLive, conn.capabilities.canPushToStartLiveActivity,
                   !pushToStartSentTo.contains(id) else { continue }
             conn.send(.registerPushToStartToken(token))
             pushToStartSentTo.insert(id)