diff --git a/dosclock.asm b/dosclock.asm
index 9ca43ae..1d0d8cb 100644
--- a/dosclock.asm
+++ b/dosclock.asm
@@ -20,6 +20,20 @@ setup:
 	mov es, ax
 
 mainloop:
+	; Check keyboard
+	mov ah, 6
+	mov dl, 0xff
+	int 0x21
+	jz .no_key
+
+	.key:
+		cmp al, 'q'
+		je exit
+		cmp al, 27
+		je exit
+
+	.no_key:
+	; Check time
 	mov ah, 0x2c
 	int 0x21
 	cmp ch, [hour]