diff --git a/x86/startup-x86_64.asm b/x86/startup-x86_64.asm
index bd5a6db1f53d8ce394cf20744d31e3cadbcca48c..95c01e2dc2965891b28e22e9ffd3ece6da7983dc 100644
--- a/x86/startup-x86_64.asm
+++ b/x86/startup-x86_64.asm
@@ -103,8 +103,6 @@ startup_arch:
     or ebx, 1 << 31 | 1 << 16 | 1                ;Bit 31: Paging, Bit 16: write protect kernel, Bit 0: Protected Mode
     mov cr0, ebx
 
-    xchg bx, bx
-
     ; far jump to enable Long Mode and load CS with 64 bit segment
     jmp gdt.kernel_code:long_mode