diff --git a/examples/capture.py b/examples/capture.py
index 8e60931..174a7b3 100644
--- a/examples/capture.py
+++ b/examples/capture.py
@@ -24,8 +24,9 @@
 
     p_pid, master_fd = pty.fork()
     if p_pid == 0:  # Child.
-        os.execvpe(argv[0], argv,
-                   env=dict(TERM="linux", COLUMNS="80", LINES="24"))
+        env = os.environ.copy()
+        env.update(dict(TERM="linux", COLUMNS="80", LINES="24"))
+        os.execvpe(argv[0], argv, env=env)
 
     with open(output_path, "wb") as handle:
         while True: