diff --git a/src/string.asm b/src/string.asm
index d257102..965c13d 100644
--- a/src/string.asm
+++ b/src/string.asm
@@ -46,6 +46,7 @@ strcpy:
 	dec	rcx
 	.copy:
 	mov	rdi, r8
+	cld
 	rep	movsb
 	mov	byte [rdi], EOS
 	mov	rax, r8