diff --git a/src/public/chat.js b/src/public/chat.js
index 5205578..afb7f56 100644
--- a/src/public/chat.js
+++ b/src/public/chat.js
@@ -17,8 +17,8 @@ render_rooms_wrapper();
 
 function init_ratchets(order, user_pubkey) {
     let dh_ratchet = new keccakKDF()
-    let key_1 =  dh_ratchet.init(sharedsecret[user_pubkey], new Uint8Array(0));
-    let key_2 = dh_ratchet.next();
+    let key_1 = concatUint8Arrays(dh_ratchet.init(sharedsecret[user_pubkey], new Uint8Array(0)), dh_ratchet.next(), dh_ratchet.next());
+    let key_2 = concatUint8Arrays(dh_ratchet.next(), dh_ratchet.next(), dh_ratchet.next());
     dh_ratchets[user_pubkey] = dh_ratchet;
     let sending_ratchet = new keccakKDF();
     let receiving_ratchet = new keccakKDF();