diff --git a/tools/tapslip6.c b/tools/tapslip6.c
index baf0b3e63..86fa37dae 100644
--- a/tools/tapslip6.c
+++ b/tools/tapslip6.c
@@ -65,7 +65,7 @@ void write_to_serial(int outfd, void *inbuf, int len);
 
 #define USAGE_STRING "usage: tapslip6 [-B baudrate] [-s siodev] [-t tundev] ipaddress netmask"
 
-char tundev[32] = { "tap0" };
+char tundev[1024] = { "tap0" };
 
 int
 ssystem(const char *fmt, ...) __attribute__((__format__ (__printf__, 1, 2)));
@@ -360,7 +360,7 @@ stty_telos(int fd)
 int
 devopen(const char *dev, int flags)
 {
-  char t[32];
+  char t[1024];
   strcpy(t, "/dev/");
   strcat(t, dev);
   return open(t, flags);
diff --git a/tools/tunslip.c b/tools/tunslip.c
index f08cc45fe..371418f53 100644
--- a/tools/tunslip.c
+++ b/tools/tunslip.c
@@ -152,7 +152,7 @@ in_addr_t giaddr;
 in_addr_t netaddr;
 in_addr_t circuit_addr;
 
-char tundev[32] = { "tun0" };
+char tundev[1024] = { "tun0" };
 
 struct sockaddr_in dhaddr;
 int dhsock = -1;
@@ -747,7 +747,7 @@ stty_telos(int fd)
 int
 devopen(const char *dev, int flags)
 {
-  char t[32];
+  char t[1024];
   strcpy(t, "/dev/");
   strcat(t, dev);
   return open(t, flags);
diff --git a/tools/tunslip6.c b/tools/tunslip6.c
index 0a5337ffc..65e440800 100644
--- a/tools/tunslip6.c
+++ b/tools/tunslip6.c
@@ -74,7 +74,7 @@ void slip_send_char(int fd, unsigned char c);
 //#define PROGRESS(s) fprintf(stderr, s)
 #define PROGRESS(s) do { } while (0)
 
-char tundev[32] = { "" };
+char tundev[1024] = { "" };
 
 int
 ssystem(const char *fmt, ...) __attribute__((__format__ (__printf__, 1, 2)));
@@ -497,7 +497,7 @@ stty_telos(int fd)
 int
 devopen(const char *dev, int flags)
 {
-  char t[32];
+  char t[1024];
   strcpy(t, "/dev/");
   strncat(t, dev, sizeof(t) - 5);
   return open(t, flags);