diff --git a/slcand.c b/slcand.c
index 8a2a172..c32c1bb 100644
--- a/slcand.c
+++ b/slcand.c
@@ -48,7 +48,7 @@
 #define RUN_AS_USER "root"
 
 /* The length of ttypath buffer */
-#define TTYPATH_LENGTH	64
+#define TTYPATH_LENGTH	256
 
 /* UART flow control types */
 #define FLOW_NONE 0