diff --git a/src/protocol/ast.rs b/src/protocol/ast.rs
index fce70b5b8456ac9fe9a3a23c835a7130a1b5fc62..c119e5ed087671302601906a25c5e0eff565789d 100644
--- a/src/protocol/ast.rs
+++ b/src/protocol/ast.rs
@@ -1086,6 +1086,7 @@ pub enum ProcedureSource {
     // Builtin components, available to user
     CompRandomU32, // TODO: Remove, temporary thing
     CompTcpClient,
+    CompTcpListener,
 }
 
 impl ProcedureSource {
@@ -1852,6 +1853,7 @@ pub enum Method {
     // Builtin component,
     ComponentRandomU32,
     ComponentTcpClient,
+    ComponentTcpListener,
     // User-defined
     UserFunction,
     UserComponent,
@@ -1862,7 +1864,7 @@ impl Method {
         use Method::*;
         match self {
             Get | Put | Fires | Create | Length | Assert | Print => true,
-            ComponentRandomU32 | ComponentTcpClient => true,
+            ComponentRandomU32 | ComponentTcpClient | ComponentTcpListener => true,
             _ => false,
         }
     }