diff --git a/presence/implementation/scan_manager.cc b/presence/implementation/scan_manager.cc
index c1cc86ae..2372f67d 100644
--- a/presence/implementation/scan_manager.cc
+++ b/presence/implementation/scan_manager.cc
@@ -122,7 +122,7 @@ void ScanManager::NotifyFoundBle(ScanSessionId id, BleAdvertisementData data,
     // TODO(b/256913915): Provide more information in PresenceDevice once
     // fully implemented
     internal::DeviceMetadata metadata;
-    metadata.set_bluetooth_mac_address(remote_address);
+    metadata.set_bluetooth_mac_address(std::string(remote_address));
     it->second.callback.on_discovered_cb(PresenceDevice(metadata));
   }
 }