diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c
index f3305c4eb8e..685b992d54f 100644
--- a/sys/dev/syscons/syscons.c
+++ b/sys/dev/syscons/syscons.c
@@ -124,7 +124,8 @@ SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key,
 
 #define SC_CONSOLECTL	255
 
-#define VIRTUAL_TTY(sc, x) (SC_DEV((sc), (x))->si_tty)
+#define VIRTUAL_TTY(sc, x) (SC_DEV((sc), (x)) != NULL ?	\
+	SC_DEV((sc), (x))->si_tty : NULL)
 
 static	int		debugger;