diff --git a/src/lib.rs b/src/lib.rs
index af554d1..194bf43 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -147,7 +147,7 @@ impl log::Log for GlogLogger {
         println!("filename {} {}", filename, link);
         let prefix = prefix_char(lvl);
         let msg = format!(
-            "{}{} {} {}] {}",
+            "{}{} {:7} {}] {}",
             prefix,
             now.format("%m%d %H:%M:%S%.6f"),
             gettid(),