diff --git a/cmd/syncthing/verboseservice.go b/cmd/syncthing/verboseservice.go
index 53a9e033..eb82087b 100644
--- a/cmd/syncthing/verboseservice.go
+++ b/cmd/syncthing/verboseservice.go
@@ -105,7 +105,7 @@ func (s *verboseService) formatEvent(ev events.Event) string {
 		return fmt.Sprintf("Device %v sent an index update for %q with %d items", data["device"], data["folder"], data["items"])
 
 	case events.DeviceRejected:
-		data := ev.Data.(map[string]interface{})
+		data := ev.Data.(map[string]string)
 		return fmt.Sprintf("Rejected connection from device %v at %v", data["device"], data["address"])
 
 	case events.FolderRejected: