diff --git a/sys/security/mac_biba/mac_biba.c b/sys/security/mac_biba/mac_biba.c
index 2c6ada1eb5e..29d5a4c9a01 100644
--- a/sys/security/mac_biba/mac_biba.c
+++ b/sys/security/mac_biba/mac_biba.c
@@ -1789,7 +1789,6 @@ biba_priv_check(struct ucred *cred, int priv)
 	case PRIV_TTY_DRAINWAIT:
 	case PRIV_TTY_DTRWAIT:
 	case PRIV_TTY_EXCLUSIVE:
-	case PRIV_TTY_PRISON:
 	case PRIV_TTY_STI:
 	case PRIV_TTY_SETA:
 
diff --git a/sys/security/mac_lomac/mac_lomac.c b/sys/security/mac_lomac/mac_lomac.c
index 2359b422ce5..7f9d0ec22f6 100644
--- a/sys/security/mac_lomac/mac_lomac.c
+++ b/sys/security/mac_lomac/mac_lomac.c
@@ -1781,7 +1781,6 @@ lomac_priv_check(struct ucred *cred, int priv)
 	case PRIV_TTY_DRAINWAIT:
 	case PRIV_TTY_DTRWAIT:
 	case PRIV_TTY_EXCLUSIVE:
-	case PRIV_TTY_PRISON:
 	case PRIV_TTY_STI:
 	case PRIV_TTY_SETA: