diff --git a/include/polarssl/ssl.h b/include/polarssl/ssl.h
index 5931c57..1e01253 100644
--- a/include/polarssl/ssl.h
+++ b/include/polarssl/ssl.h
@@ -126,7 +126,7 @@
 
 #define SSL_ALERT_MSG_CLOSE_NOTIFY           0
 #define SSL_ALERT_MSG_UNEXPECTED_MESSAGE    10
-#define SSL_ALERT_MSG_BAD_RECORD_MAD        20
+#define SSL_ALERT_MSG_BAD_RECORD_MAC        20
 #define SSL_ALERT_MSG_DECRYPTION_FAILED     21
 #define SSL_ALERT_MSG_RECORD_OVERFLOW       22
 #define SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30