diff --git a/debian/securetty.linux b/debian/securetty.linux
index e020574b..f6fb3044 100644
--- a/debian/securetty.linux
+++ b/debian/securetty.linux
@@ -216,6 +216,12 @@ ttySC0
 ttySC1
 ttySC2
 ttySC3
+ttySC4
+ttySC5
+ttySC6
+ttySC7
+ttySC8
+ttySC9
 
 # ARM "AMBA" serial ports
 ttyAM0