diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -1125,6 +1125,9 @@
 void
 fork_return(struct thread *td, struct trapframe *frame)
 {
+#ifdef KTRACE
+	struct syscall_args *sa;
+#endif
 	struct proc *p;
 
 	p = td->td_proc;
@@ -1167,8 +1170,10 @@
 	userret(td, frame);
 
 #ifdef KTRACE
-	if (KTRPOINT(td, KTR_SYSRET))
-		ktrsysret(SYS_fork, 0, 0);
+	if (KTRPOINT(td, KTR_SYSRET)) {
+		sa = &td->td_sa;
+		ktrsysret(sa->code, 0, 0);
+	}
 #endif
 }