diff --git a/protocol/protocol.tex b/protocol/protocol.tex
index 7b7388df..7318c6f2 100644
--- a/protocol/protocol.tex
+++ b/protocol/protocol.tex
@@ -321,9 +321,9 @@
 \DeclareSymbolFont{matha}{OML}{txmi}{m}{it}
 \DeclareMathSymbol{\varv}{\mathord}{matha}{118}
 
-% newmathtx defines some nice characters, but has too many side effects
+% newtxmath defines some nice characters, but has too many side effects
 % and is completely incompatible with lmodern. We pull these definitions out
-% of <newmathtx.sty>.
+% of <newtxmath.sty>.
 
 % from <https://tex.stackexchange.com/q/452081/78411>
 \makeatletter
@@ -347,7 +347,7 @@
 \DeclareMathSymbol{\ggg}{\mathrel}{AMSm}{239}
 \DeclareMathSymbol{\circledast}{\mathbin}{AMSm}{254}
 
-% end of characters from newmathtx
+% end of characters from newtxmath
 
 \newcommand{\hairspace}{~\!}
 \newcommand{\oparen}{\big(}