diff --git a/sys/amd64/amd64/exception.S b/sys/amd64/amd64/exception.S
index 3fb51817940..bd9f235626e 100644
--- a/sys/amd64/amd64/exception.S
+++ b/sys/amd64/amd64/exception.S
@@ -525,7 +525,6 @@ prot_addrf:
 	SUPERALIGN_TEXT
 IDTVEC(fast_syscall_pti)
 	swapgs
-	lfence
 	cmpq	$~0,PCPU(UCR3)
 	je	fast_syscall_common
 	movq	%rax,PCPU(SCRATCH_RAX)
@@ -536,7 +535,6 @@ IDTVEC(fast_syscall_pti)
 	SUPERALIGN_TEXT
 IDTVEC(fast_syscall)
 	swapgs
-	lfence
 fast_syscall_common:
 	movq	%rsp,PCPU(SCRATCH_RSP)
 	movq	PCPU(RSP0),%rsp