diff --git a/var/mongoose/lib/ts.class b/var/mongoose/lib/ts.class
index bc0b0a3..f4be414 100644
--- a/var/mongoose/lib/ts.class
+++ b/var/mongoose/lib/ts.class
@@ -25,6 +25,7 @@ ts method size {} {
 		file stat $file st
 		set sz [expr $st(size) / 1048576]
 	}
+	return $sz
 }
 
 ts method _parse {line} {