diff --git a/src/testdir/test_channel_pipe.py b/src/testdir/test_channel_pipe.py
index 5caffcb..5202908 100644
--- a/src/testdir/test_channel_pipe.py
+++ b/src/testdir/test_channel_pipe.py
@@ -29,6 +29,8 @@
 
     while True:
         typed = sys.stdin.readline()
+        if typed == "":  # EOF -- stop
+            break
         if typed.startswith("quit"):
             print("Goodbye!")
             sys.stdout.flush()