diff --git a/io.c b/io.c
index 4cd8d4d64e..9f6c2fe871 100644
--- a/io.c
+++ b/io.c
@@ -10370,7 +10370,7 @@ nogvl_wait_for_single_fd(int fd, short events)
     fds.fd = fd;
     fds.events = events;
 
-    return poll(&fds, 1, 0);
+    return poll(&fds, 1, -1);
 }
 
 static int