Replace octet_t with uint8_t.
diff --git a/doc/intro.txt b/doc/intro.txt
index 37f9bd1..4d2626b 100644
--- a/doc/intro.txt
+++ b/doc/intro.txt
@@ -343,7 +343,7 @@
 @verbatim
    srtp_t session;   
    srtp_policy_t policy;
-   octet_t key[30];
+   uint8_t key[30];
 
    /* initialize libSRTP */
    srtp_init();