diff --git a/protocol/protocol.tex b/protocol/protocol.tex
index b94527be..49096268 100644
--- a/protocol/protocol.tex
+++ b/protocol/protocol.tex
@@ -1657,7 +1657,7 @@ spendable by the recipient who holds the \spendingKey corresponding
 to a given \paymentAddress.
 }
 
-A \Sprout \note is a tuple $\changed{(\AuthPublic,
+A \SproutOrNothing \note is a tuple $\changed{(\AuthPublic,
 \Value, \NoteAddressRand, \NoteCommitRand)}$, where:
 \begin{itemize}
   \item $\AuthPublic \typecolon \PRFOutput$ is the \payingKey of the
@@ -1672,7 +1672,7 @@ A \Sprout \note is a tuple $\changed{(\AuthPublic,
         is a random \commitmentTrapdoor as defined in \crossref{abstractcomm}.
 \end{itemize}
 
-Let $\NoteTypeSprout$ be the type of a \Sprout \note,
+Let $\NoteTypeSprout$ be the type of a \SproutOrNothing \note,
 i.e.\ \changed{$\PRFOutput \times \range{0}{\MAXMONEY} \times \PRFOutput
 \times \NoteCommitSproutTrapdoor$}.