diff --git a/sys/arm64/arm64/trap.c b/sys/arm64/arm64/trap.c
index 1178817108e..3afeb34abd5 100644
--- a/sys/arm64/arm64/trap.c
+++ b/sys/arm64/arm64/trap.c
@@ -131,6 +131,7 @@ call_trapsignal(struct thread *td, int sig, int code, void *addr, int trapno)
 	ksi.ksi_code = code;
 	ksi.ksi_addr = addr;
 	ksi.ksi_trapno = trapno;
+	ksi.ksi_flags |= KSI_EXCEPT;
 	trapsignal(td, &ksi);
 }
 
diff --git a/sys/sys/signalvar.h b/sys/sys/signalvar.h
index 8f181b7beee..9a4009d269a 100644
--- a/sys/sys/signalvar.h
+++ b/sys/sys/signalvar.h
@@ -237,6 +237,7 @@ typedef struct ksiginfo {
 #define	KSI_SIGQ	0x08	/* Generated by sigqueue, might ret EAGAIN. */
 #define	KSI_HEAD	0x10	/* Insert into head, not tail. */
 #define	KSI_PTRACE	0x20	/* Generated by ptrace. */
+#define	KSI_EXCEPT	0x40	/* Generated by an exception. */
 #define	KSI_COPYMASK	(KSI_TRAP | KSI_SIGQ | KSI_PTRACE)
 
 #define	KSI_ONQ(ksi)	((ksi)->ksi_sigq != NULL)