diff --git a/Process.c b/Process.c
index 3f91b67d..f164e5f5 100644
--- a/Process.c
+++ b/Process.c
@@ -365,7 +365,17 @@ void Process_writeField(const Process* this, RichString* str, ProcessField field
    case TIME: Process_printTime(str, this->time); return;
    case TGID: xSnprintf(buffer, n, "%*d ", Process_pidDigits, this->tgid); break;
    case TPGID: xSnprintf(buffer, n, "%*d ", Process_pidDigits, this->tpgid); break;
-   case TTY_NR: xSnprintf(buffer, n, "%3u:%3u ", major(this->tty_nr), minor(this->tty_nr)); break;
+   case TTY_NR: {
+      unsigned int major = major(this->tty_nr);
+      unsigned int minor = minor(this->tty_nr);
+      if (major == 0 && minor == 0) {
+         attr = CRT_colors[PROCESS_SHADOW];
+         xSnprintf(buffer, n, "(none)   ");
+      } else {
+         xSnprintf(buffer, n, "%3u:%3u  ", major, minor);
+      }
+      break;
+   }
    case USER: {
       if (Process_getuid != this->st_uid)
          attr = CRT_colors[PROCESS_SHADOW];
diff --git a/linux/LinuxProcess.c b/linux/LinuxProcess.c
index 488b9372..79e73e84 100644
--- a/linux/LinuxProcess.c
+++ b/linux/LinuxProcess.c
@@ -607,15 +607,14 @@ static void LinuxProcess_writeField(const Process* this, RichString* str, Proces
    int attr = CRT_colors[DEFAULT_COLOR];
    size_t n = sizeof(buffer) - 1;
    switch (field) {
-   case TTY_NR: {
+   case TTY_NR:
       if (lp->ttyDevice) {
-         xSnprintf(buffer, n, "%-9s", lp->ttyDevice + 5 /* skip "/dev/" */);
-      } else {
-         attr = CRT_colors[PROCESS_SHADOW];
-         xSnprintf(buffer, n, "?        ");
+         xSnprintf(buffer, n, "%-8s ", lp->ttyDevice + 5 /* skip "/dev/" */);
+         break;
       }
-      break;
-   }
+
+      Process_writeField(this, str, field);
+      return;
    case CMINFLT: Process_colorNumber(str, lp->cminflt, coloring); return;
    case CMAJFLT: Process_colorNumber(str, lp->cmajflt, coloring); return;
    case M_DRS: Process_humanNumber(str, lp->m_drs * pageSizeKB, coloring); return;