diff --git a/kernel/main.asm b/kernel/main.asm
index 1cee52f..f9ea6c7 100644
--- a/kernel/main.asm
+++ b/kernel/main.asm
@@ -54,6 +54,7 @@ putc:
   ret
 
 announce:
+  push ds
   push cs
   mov ax, cs
   mov ds, ax
@@ -62,6 +63,7 @@ announce:
   call printf
   db "%S (CS=%Xh)", 0x0A, 0x0D, 0x00
   add sp, 4
+  pop ds
   ret
 
 start: