diff --git a/src/common/ttys.ts b/src/common/ttys.ts
index 2a9bec9d..f71b08de 100644
--- a/src/common/ttys.ts
+++ b/src/common/ttys.ts
@@ -1,6 +1,6 @@
-import fs from 'fs';
-import tty from 'tty';
-import assert from 'assert';
+import fs from "fs";
+import tty from "tty";
+import assert from "assert";
 
 // Based on https://github.com/TooTallNate/ttys/blob/master/index.js
 export const ttys: {
@@ -11,15 +11,23 @@ export const ttys: {
 if (tty.isatty(0)) {
   ttys.stdin = process.stdin;
 } else {
-  let ttyFd = fs.openSync('/dev/tty', 'r');
-  assert(tty.isatty(ttyFd));
-  ttys.stdin = new tty.ReadStream(ttyFd);
+  try {
+    let ttyFd = fs.openSync("/dev/tty", "r");
+    assert(tty.isatty(ttyFd));
+    ttys.stdin = new tty.ReadStream(ttyFd);
+  } catch {
+    ttys.stdin = process.stdin;
+  }
 }
 
 if (tty.isatty(1)) {
   ttys.stdout = process.stdout;
 } else {
-  let ttyFd = fs.openSync('/dev/tty', 'w');
-  assert(tty.isatty(ttyFd));
-  ttys.stdout = new tty.WriteStream(ttyFd);
+  try {
+    let ttyFd = fs.openSync("/dev/tty", "w");
+    assert(tty.isatty(ttyFd));
+    ttys.stdout = new tty.WriteStream(ttyFd);
+  } catch {
+    ttys.stdout = process.stdout;
+  }
 }