diff --git a/drivers/rpmsg/rpmsg_port_uart.c b/drivers/rpmsg/rpmsg_port_uart.c
index 50c0fb9d247..49a152c1148 100644
--- a/drivers/rpmsg/rpmsg_port_uart.c
+++ b/drivers/rpmsg/rpmsg_port_uart.c
@@ -375,12 +375,14 @@ static int rpmsg_port_uart_rx_thread(int argc, FAR char *argv[])
           else if (buf[i] == RPMSG_PORT_UART_SUSPEND)
             {
               rpmsgdbg("Received suspend command\n");
+              atomic_fetch_and(&rpuart->port.signals, ~RPMSG_SIGNAL_RUNNING);
               nxsem_wait(&rpuart->wake);
               continue;
             }
           else if (buf[i] == RPMSG_PORT_UART_RESUME)
             {
               rpmsgdbg("Received resume command\n");
+              atomic_fetch_or(&rpuart->port.signals, RPMSG_SIGNAL_RUNNING);
               nxsem_post(&rpuart->wake);
               continue;
             }