diff --git a/book/source/02-highlevel.md b/book/source/02-highlevel.md
index 2b853cb..6654e3d 100644
--- a/book/source/02-highlevel.md
+++ b/book/source/02-highlevel.md
@@ -44,13 +44,6 @@ GnuPG was a major early implementation of OpenPGP. Over the years, the importanc
 
 Because the GnuPG program binary is called "gpg," "GnuPG" and "gpg" are often used interchangeably.
 
-```{admonition} TODO
-Move this to an issue:
-The following statement does not make sense here in the history part. 
-
-: The terms "pgp key" and "gpg key" are sometimes used. Since PGP and GnuPG are just two of many existing OpenPGP implementations, the proper term is "OpenPGP key" (or "OpenPGP certificate", more on that [later](certificates_chapter)).
-```
-
 ## The OpenPGP version 4 era
 
 ### OpenPGP version 4