diff --git a/debug/testlib.py b/debug/testlib.py
index ba6057dc8..baa778308 100644
--- a/debug/testlib.py
+++ b/debug/testlib.py
@@ -796,6 +796,7 @@ def command(self, command, ops=1, reset_delays=0):
         timeout = max(1, ops) * self.timeout
         self.active_child.sendline(command)
         try:
+            self.active_child.expect(re.escape(command), timeout=timeout)
             self.active_child.expect("\n", timeout=timeout)
         except pexpect.exceptions.TIMEOUT as exc:
             raise CommandSendTimeout(command) from exc