diff --git a/Cargo.toml b/Cargo.toml
index 24da1df44b..a1efb585eb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,7 +38,7 @@ features = [
     "std",
     "medium-ethernet", "medium-ip",
     "proto-ipv4",
-    "socket-raw", "socket-icmp", "socket-udp", "socket-tcp",
+    "socket-raw", "socket-icmp", "socket-udp", "socket-tcp", "socket-tcp-cubic",
     "iface-max-addr-count-8",
     "log"
 ]