diff --git a/src/uartdrv.c b/src/uartdrv.c
index 993f89c..7a74f87 100644
--- a/src/uartdrv.c
+++ b/src/uartdrv.c
@@ -6,7 +6,7 @@
 
 
 
-#define BUFFER_SIZE 128
+#define BUFFER_SIZE 256
 volatile uint8_t buffer[BUFFER_SIZE+5];
 volatile uint8_t bufferReadIdx = 0;
 volatile uint8_t bufferWriteIdx = 0;