diff --git a/book/source/02-highlevel.md b/book/source/02-highlevel.md
index 186a08e..35f3cb6 100644
--- a/book/source/02-highlevel.md
+++ b/book/source/02-highlevel.md
@@ -31,7 +31,7 @@ The origins of OpenPGP can be traced back to *Pretty Good Privacy (PGP)*, a soft
 
 The original PGP software played a role in the political struggles sometimes referred to as the ["Crypto Wars"](https://en.wikipedia.org/wiki/Crypto_Wars) (also see ["Crypto: How the Code Rebels Beat the Government Saving Privacy in the Digital" (2002)](https://en.wikipedia.org/wiki/Crypto_(book)), which includes some of PGP's history).
 
-The original PGP software was never under a Free Software license, despite its source code being widely published by its author. [PGP's ownership has changed over the years](https://en.wikipedia.org/wiki/Pretty_Good_Privacy#PGP_Corporation_and_Symantec), and [PGP's scope and suite of products have expanded] (https://en.wikipedia.org/wiki/Pretty_Good_Privacy#PGP_Corporation_encryption_applications).
+The original PGP software was never under a Free Software license, despite its source code being widely published by its author. [PGP's ownership has changed over the years](https://en.wikipedia.org/wiki/Pretty_Good_Privacy#PGP_Corporation_and_Symantec), and [PGP's scope and suite of products have expanded](https://en.wikipedia.org/wiki/Pretty_Good_Privacy#PGP_Corporation_encryption_applications).
 
 ### Standardizing OpenPGP