diff --git a/EgtsProcessing.h b/EgtsProcessing.h
index 10d8cb4..f6deb9f 100644
--- a/EgtsProcessing.h
+++ b/EgtsProcessing.h
@@ -355,7 +355,7 @@ typedef struct {
 //    uint8_t wb[1024 * 10];
 
 
-    char hexString[1024];
+    char hexString[512];
 
     tLocationPointInDegDouble *bleLoc;
     tGsmWithGnss *gsm;