diff --git a/Src/LoggerToSerialPort.c b/Src/LoggerToSerialPort.c
index d6e3d73..e27b422 100644
--- a/Src/LoggerToSerialPort.c
+++ b/Src/LoggerToSerialPort.c
@@ -145,7 +145,7 @@ void LoggerToSerialPort_Init(
     LogTransmitter_StartThread(env);
 }
 
-extern uint8_t buf_USART2_TRANSMITTED[512];
+extern uint8_t buf_USART2_TRANSMITTED[256];
 
 static _Noreturn void LogTransmitter_Thread(tLoggerToSerialPort *env) {
     for (;;) {