diff --git a/ch05.asciidoc b/ch05.asciidoc
index 5cde33da..2facac29 100644
--- a/ch05.asciidoc
+++ b/ch05.asciidoc
@@ -299,7 +299,7 @@ There is also a BIP-39 generator implemented in a standalone webpage, which is e
 image::images/mbc2_0508.png["BIP-39 generator web-page"]
 
 The page can be used offline in a browser, or accessed online at
-https://dcpos.github.io/bip39/
+https://dcpos.github.io/bip39/[].
 
 ==== Creating an HD Wallet from the Seed