diff --git a/README.md b/README.md
index 97f7b28..ef7075e 100644
--- a/README.md
+++ b/README.md
@@ -171,8 +171,8 @@ paths in the configuration file, e.g.:
 ```toml
 [network]
 address = '0.0.0.0:3000'
-tls_certificate_path = './cert.crt'
-tls_private_key_path = './key.pk8'
+tls_certificate_path = './cert.pem'
+tls_private_key_path = './key.pem'
 ```
 
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