diff --git a/gdbstub.c b/gdbstub.c
index 8155eedf9c..9d3951336f 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -1631,7 +1631,7 @@ static int gdbserver_open(int port)
         close(fd);
         return -1;
     }
-    ret = listen(fd, 0);
+    ret = listen(fd, 1);
     if (ret < 0) {
         perror("listen");
         close(fd);