Mention in ChangeLog that this fixes #1351
diff --git a/ChangeLog b/ChangeLog
index 1862e00..88787fa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,11 +1,11 @@
 mbed TLS ChangeLog (Sorted per branch, date)
 
-= mbed TLS x.x.x branch released xxxx-xx-xx
+= mbed TLS 2.1.x branch released xxxx-xx-xx
 
 Bugfix
    * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
      with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
-     In the context of SSL, this resulted in handshake failure.
+     In the context of SSL, this resulted in handshake failure. #1351
 
 = mbed TLS 2.1.10 branch released 2018-02-03