diff --git a/src/lib.rs b/src/lib.rs
index 2b67d50..f5b8d0a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -213,6 +213,8 @@ pub fn new_log<P: AsRef<Path>>(
     let roller = FileRoller::new(path, maxfile, period);
     let (writer, guard) = tracing_appender::non_blocking(roller);
     tracing_subscriber::fmt()
+        .with_line_number(true)
+        .with_file(true)
         .with_writer(writer)
         .with_max_level(level)
         .with_timer(timer)