4 files changed, 6 insertions, 0 deletions

diff --git a/sys/dev/dgb/dgb.c b/sys/dev/dgb/dgb.c
index e77e2f1ca196..ef6ba67e87b0 100644
--- a/sys/dev/dgb/dgb.c
+++ b/sys/dev/dgb/dgb.c
@@ -58,6 +58,7 @@
 
 #include "opt_compat.h"
 #include "opt_dgb.h"
+#include "opt_tty.h"
 
 #include "dgb.h"
 
diff --git a/sys/dev/nmdm/nmdm.c b/sys/dev/nmdm/nmdm.c
index 8f5af4636df2..7b5ec78ea521 100644
--- a/sys/dev/nmdm/nmdm.c
+++ b/sys/dev/nmdm/nmdm.c
@@ -39,6 +39,8 @@
  */
 
 #include "opt_compat.h"
+#include "opt_tty.h"
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #if defined(COMPAT_43) || defined(COMPAT_SUNOS)
diff --git a/sys/dev/rc/rc.c b/sys/dev/rc/rc.c
index 07c0c5b913c7..aafb3fda68f3 100644
--- a/sys/dev/rc/rc.c
+++ b/sys/dev/rc/rc.c
@@ -35,6 +35,8 @@
 
 /*#define RCDEBUG*/
 
+#include "opt_tty.h"
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/bus.h>
diff --git a/sys/dev/si/si.c b/sys/dev/si/si.c
index d96266ce069e..ed79741a6c3f 100644
--- a/sys/dev/si/si.c
+++ b/sys/dev/si/si.c
@@ -41,6 +41,7 @@ static const char si_copyright1[] =  "@(#) Copyright (C) Specialix International
 
 #include "opt_compat.h"
 #include "opt_debug_si.h"
+#include "opt_tty.h"
 
 #include <sys/param.h>
 #include <sys/systm.h>