diff --git a/doc/configuration.txt b/doc/configuration.txt
index d11b63185..4e66aad84 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -10541,7 +10541,7 @@ accept-proxy
   setting of which client is allowed to use the protocol.
 
 allow-0rtt
-  Allow receiving early data when using TLS 1.3. This is disabled by default,
+  Allow receiving early data when using TLSv1.3. This is disabled by default,
   due to security considerations.
 
 alpn <protocols>
diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index 813b59921..5610a41f7 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -1996,7 +1996,7 @@ static void ctx_set_TLSv12_func(SSL_CTX *ctx, set_context_func c) {
 		: SSL_CTX_set_ssl_version(ctx, TLSv1_2_client_method());
 #endif
 }
-/* TLS 1.2 is the last supported version in this context. */
+/* TLSv1.2 is the last supported version in this context. */
 static void ctx_set_TLSv13_func(SSL_CTX *ctx, set_context_func c) {}
 /* Unusable in this context. */
 static void ssl_set_SSLv3_func(SSL *ssl, set_context_func c) {}
@@ -2197,7 +2197,7 @@ static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *arg)
 				break;
 		}
 	} else {
-		/* without TLSEXT_TYPE_signature_algorithms extension (< TLS 1.2) */
+		/* without TLSEXT_TYPE_signature_algorithms extension (< TLSv1.2) */
 		has_rsa = 1;
 	}
 	if (has_ecdsa_sig) {  /* in very rare case: has ecdsa sign but not a ECDSA cipher */