diff --git a/libcoap-sys/Cargo.toml b/libcoap-sys/Cargo.toml
index c2a6b49..ae4ceab 100644
--- a/libcoap-sys/Cargo.toml
+++ b/libcoap-sys/Cargo.toml
@@ -62,8 +62,9 @@ static = []
 # Corresponding libcoap configure flag: --enable-dtls
 dtls = []
 # Enable this feature to enable/require TLS support in addition to DTLS support.
-# Note: Will also enable the DTLS feature, so consider the above section regarding DTLS backends before enabling this.
-tls = ["dtls"]
+# Note: Will also enable the TCP and DTLS features, so consider the above section regarding DTLS backends before +
+# enabling this.
+tls = ["dtls", "tcp"]
 # Enable this feature to enable/require OSCORE functionality in the C library.
 # Corresponding libcoap configure flag: --enable-oscore
 oscore = []