diff --git a/src/test/cpp/briey/main.cpp b/src/test/cpp/briey/main.cpp
index d2b372c..c0e165a 100644
--- a/src/test/cpp/briey/main.cpp
+++ b/src/test/cpp/briey/main.cpp
@@ -382,6 +382,8 @@ public:
 		timeProcesses.push_back(asyncReset);
 		timeProcesses.push_back(jtag);
 		timeProcesses.push_back(uartRx);
+        top->io_uart_rxd = 1;
+
 
 		SdramConfig *sdramConfig = new SdramConfig(
 			2,  //byteCount