diff --git a/doc/api/tls.md b/doc/api/tls.md
index 3c77f8c6c284ab..77a3b6cba31703 100644
--- a/doc/api/tls.md
+++ b/doc/api/tls.md
@@ -118,7 +118,7 @@ SNI (Server Name Indication) are TLS handshake extensions:
 
 * ALPN: Allows the use of one TLS server for multiple protocols (HTTP, HTTP/2)
 * SNI: Allows the use of one TLS server for multiple hostnames with different
-  SSL certificates.
+  certificates.
 
 ### Pre-shared keys