diff --git a/tools/csvparser.h b/tools/csvparser.h
index 9b42b039e90..e749a211840 100644
--- a/tools/csvparser.h
+++ b/tools/csvparser.h
@@ -34,7 +34,7 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-#define LINESIZE      (PATH_MAX > 256 ? PATH_MAX : 256)
+#define LINESIZE      (PATH_MAX > 512 ? PATH_MAX : 512)
 
 #define MAX_FIELDS    16
 #define MAX_PARMSIZE  256