diff --git a/CommandLines.h b/CommandLines.h
index 4c459a7..95bdedb 100644
--- a/CommandLines.h
+++ b/CommandLines.h
@@ -14,7 +14,7 @@ typedef struct {
 
     struct {
         tCliRedirectItem commandPrefixes[10];
-        uint8_t cmdRxLine[512];
+        uint8_t cmdRxLine[128];
     } mem;
 
     tCliCmd cmd;