diff --git a/ChangeLog b/ChangeLog
index f77278b..67777d4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -11,6 +11,8 @@
      side.
 
 Bugfix
+   * Fix typo in ssl.h leading to a too small value of SSL_MAC_ADD
+     in case CBC is disabled but ARC4 is enabled.
    * Fix memory leak in ssl_set_hostname() when called multiple times.
      Found by projectgus and jethrogb, #836.
    * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
diff --git a/include/polarssl/ssl.h b/include/polarssl/ssl.h
index 9a3fb8a..32c07c2 100644
--- a/include/polarssl/ssl.h
+++ b/include/polarssl/ssl.h
@@ -303,7 +303,7 @@
 #define SSL_COMPRESSION_ADD             0
 #endif
 
-#if defined(POLARSSL_RC4_C) || defined(POLARSSL_CIPHER_MODE_CBC)
+#if defined(POLARSSL_ARC4_C) || defined(POLARSSL_CIPHER_MODE_CBC)
 /* Ciphersuites using HMAC */
 #if defined(POLARSSL_SHA512_C)
 #define SSL_MAC_ADD                 48  /* SHA-384 used for HMAC */