diff --git a/src/boot.s b/src/boot.s
index c41e7d5..9342ba9 100644
--- a/src/boot.s
+++ b/src/boot.s
@@ -26,12 +26,25 @@ _start:
 	mov stack_top, esp
 
 	cmp eax, BOOTLOADER_MAGIC
-	jne hang
+	jne error
 
 	push ebx
 	call kernel_main
 	add esp, 4
+	jmp error
+
+error:
+    cli
+    mov byte ptr [0xb8000], 'B'
+    mov byte ptr [0xb8002], 'O'
+    mov byte ptr [0xb8004], 'O'
+    mov byte ptr [0xb8006], 'T'
+    mov byte ptr [0xb8008], ' '
+    mov byte ptr [0xb800a], 'E'
+    mov byte ptr [0xb800c], 'R'
+    mov byte ptr [0xb800e], 'R'
+    mov byte ptr [0xb8010], 'O'
+    mov byte ptr [0xb8012], 'R'
 hang:
-	cli
-	hlt
-	jmp hang
\ No newline at end of file
+    hlt
+    jmp hang