diff --git a/rfc/0017_transaction_comment_encryption.md b/rfc/0017_transaction_comment_encryption.md
index 6b7868a738c0b90123f4e94ebac6ebe46e30d302..574e923dfe89096720d5998dce41f79d4bbc73fc 100644
--- a/rfc/0017_transaction_comment_encryption.md
+++ b/rfc/0017_transaction_comment_encryption.md
@@ -104,7 +104,7 @@ It is recommended to randomly generate a random number of extra bytes to obscure
 
 ## Encoding in transaction document
 
-Encrypted message in encoded in base 64 in transaction comment directly (DUBP protocol already accept all base 64 characters).
+Encrypted message in encoded in base 64 (without padding) in transaction comment directly (DUBP protocol already accept all base 64 characters).
 
 ## Maximum message length