diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index 9dbf4e6..9050edb 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -526,6 +526,23 @@
 
     return( 0 );
 }
+static int ssl_parse_max_fragment_length_ext( ssl_context *ssl,
+                                              unsigned char *buf,
+                                              size_t len )
+{
+    /*
+     * server should use the extension only if we did,
+     * and if so the server's value should match ours (and len is always 1)
+     */
+    if( ssl->mfl_code == SSL_MAX_FRAG_LEN_NONE ||
+        len != 1 ||
+        buf[0] != ssl->mfl_code )
+    {
+        return( POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO );
+    }
+
+    return( 0 );
+}
 
 static int ssl_parse_server_hello( ssl_context *ssl )
 {
@@ -743,6 +760,17 @@
 
             break;
 
+        case TLS_EXT_MAX_FRAGMENT_LENGTH:
+            SSL_DEBUG_MSG( 3, ( "found max_fragment_length extension" ) );
+
+            if( ( ret = ssl_parse_max_fragment_length_ext( ssl,
+                            ext + 4, ext_size ) ) != 0 )
+            {
+                return( ret );
+            }
+
+            break;
+
         default:
             SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)",
                            ext_id ) );