diff --git a/pytest-embedded-serial/pytest_embedded_serial/dut.py b/pytest-embedded-serial/pytest_embedded_serial/dut.py
index 26aa8a1d..7259ed95 100644
--- a/pytest-embedded-serial/pytest_embedded_serial/dut.py
+++ b/pytest-embedded-serial/pytest_embedded_serial/dut.py
@@ -44,5 +44,5 @@ def write(self, data: AnyStr) -> None:
 
     def setup_jtag(self):
         if self.gdb:
-            self.gdb.write('set remotetimeout 10')
+            self.gdb.write('set remotetimeout 10', non_blocking=True)
             self.gdb.write(f'target extended-remote :{self.openocd.gdb_port}')