diff --git a/artiq/firmware/libboard_artiq/si5324.rs b/artiq/firmware/libboard_artiq/si5324.rs
index a03aaccb2..0382cea1f 100644
--- a/artiq/firmware/libboard_artiq/si5324.rs
+++ b/artiq/firmware/libboard_artiq/si5324.rs
@@ -177,6 +177,7 @@ fn locked() -> Result<bool> {
 }
 
 fn monitor_lock() -> Result<()> {
+    info!("waiting for Si5324 lock...")
     let t = clock::get_ms();
     while !locked()? {
         // Yes, lock can be really slow.
@@ -184,7 +185,7 @@ fn monitor_lock() -> Result<()> {
             return Err("Si5324 lock timeout");
         }
     }
-    info!("Si5324 is locked");
+    info!("  ...locked");
     Ok(())
 }