diff --git a/scans/un.s b/scans/un.s
index b38177c..9f3ad9b 100644
--- a/scans/un.s
+++ b/scans/un.s
@@ -17,7 +17,7 @@
    skp
    jmp 2f
    lac d1
-   sys write; t1; buf; 4
+   sys write; t1: buf; 4
    lac d1
    sys write; mes+1; 1
 2: