diff --git a/zssp/changes.txt b/zssp/changes.txt
index ff34d5fc5..998cd192e 100644
--- a/zssp/changes.txt
+++ b/zssp/changes.txt
@@ -11,3 +11,5 @@ Implemented a safer version of read_exact for zssp to use. This has similar bene
 Refactored most buffer logic to use safe_read_exact and safe_write_all, the resulting code is less verbose and easier to analyze: Because of this refactor the buffer overrun below was caught.
 
 Fixed a buffer overrun panic when decoding alice_ratchet_key_fingerprint
+
+Renamed variables and added extra intermediate values so encoding and decoding are more obviously symmetric.