diff --git a/crates/zed/src/main.rs b/crates/zed/src/main.rs
index da726eef65d16e9ffeaa84141506c7e1b184a76a..3e0a8a7a073fcd75dae725f900fe09d328b092b5 100644
--- a/crates/zed/src/main.rs
+++ b/crates/zed/src/main.rs
@@ -31,7 +31,7 @@ use std::{
     env,
     ffi::OsStr,
     fs::OpenOptions,
-    io::Write as _,
+    io::{IsTerminal, Write as _},
     os::unix::prelude::OsStrExt,
     panic,
     path::{Path, PathBuf},
@@ -635,8 +635,7 @@ async fn load_login_shell_environment() -> Result<()> {
 }
 
 fn stdout_is_a_pty() -> bool {
-    std::env::var(FORCE_CLI_MODE_ENV_VAR_NAME).ok().is_none()
-        && unsafe { libc::isatty(libc::STDOUT_FILENO as i32) != 0 }
+    std::env::var(FORCE_CLI_MODE_ENV_VAR_NAME).ok().is_none() && std::io::stdout().is_terminal()
 }
 
 fn collect_path_args() -> Vec<PathBuf> {