diff --git a/kaleid/kernel/io/spkr.c b/kaleid/kernel/io/spkr.c
index 2959194..dff5d21 100644
--- a/kaleid/kernel/io/spkr.c
+++ b/kaleid/kernel/io/spkr.c
@@ -68,9 +68,10 @@ static void IoDoToneNoIdt(uint tone, uint time)
 
 void IoDoBeep(void)
 {
-    if (KeIdtIsInitialized)
+    if (KeIdtIsInitialized) {
         IoDoTone(1000, 100);
         IoQuietSpeaker();
+    }
 }
 
 void IoDoBeepNoIdt(void)