diff --git a/README.md b/README.md
index dfd2897..ba5a6ca 100644
--- a/README.md
+++ b/README.md
@@ -249,7 +249,7 @@ ssh -i id_user root@example.com
 
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-> `external_*` subcommands follow <<Cryptography external command specification>>
+> `external_*` subcommands follow &lt;&lt;Cryptography external command specification&gt;&gt;
 > Specification: https://openwebstandard.org/rfc1
 
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