diff --git a/ssl/ssl2.h b/ssl/ssl2.h
index df7d03c..f8b56af 100644
--- a/ssl/ssl2.h
+++ b/ssl/ssl2.h
@@ -134,11 +134,11 @@
 /* Upper/Lower Bounds */
 #define SSL2_MAX_MASTER_KEY_LENGTH_IN_BITS	256
 #ifdef MPE
-#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER	(unsigned int)29998
+#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER	29998u
 #else
-#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER	(unsigned int)32767 
+#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER	32767u  /* 2^15-1 */
 #endif
-#define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER	16383 /**/
+#define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER	16383 /* 2^14-1 */
 
 #define SSL2_CHALLENGE_LENGTH	16
 /*#define SSL2_CHALLENGE_LENGTH	32 */