diff --git a/bacnet-stack/config.h b/bacnet-stack/config.h
index 99836cd8..ae1d3c23 100644
--- a/bacnet-stack/config.h
+++ b/bacnet-stack/config.h
@@ -11,9 +11,9 @@
 /* This is used in constructing messages and to tell others our limits */
 /* 50 is the minimum; adjust to your memory and physical layer constraints */
 /* Lon=206, MS/TP=480, ARCNET=480, Ethernet=1476 */
-/*#define MAX_APDU 50 */
+/* #define MAX_APDU 50 */
 #define MAX_APDU 480
-/*#define MAX_APDU 1476 */
+/* #define MAX_APDU 1476 */
 
 /* for confirmed messages, this is the number of transactions */
 /* that we hold in a queue waiting for timeout. */