diff --git a/sample/char_output.asm b/sample/char_output.asm
index 33eeaa6..cb11aa6 100644
--- a/sample/char_output.asm
+++ b/sample/char_output.asm
@@ -1,4 +1,4 @@
-addi $s1 $zero 65
+addi $s1 $zero 64
 addi $s2 $zero 90
 
 #CRLF