diff --git a/lib/goldilocks.js b/lib/goldilocks.js
index bc5e6f1..d92d8d9 100644
--- a/lib/goldilocks.js
+++ b/lib/goldilocks.js
@@ -476,13 +476,22 @@ module.exports.create = function (deps, config) {
 
   var listenPromises = [];
   var tcpPortMap = {};
-
-  if (config.tcp.bind) {
-    config.tcp.bind.forEach(function (port) {
-      tcpPortMap[port] = true;
-    });
+  function addPorts(bindList) {
+    if (!bindList) {
+      return;
+    }
+    if (Array.isArray(bindList)) {
+      bindList.forEach(function (port) {
+        tcpPortMap[port] = true;
+      });
+    }
+    else {
+      tcpPortMap[bindList] = true;
+    }
   }
-  config.tcp.modules.forEach(function (mod) {
+
+  addPorts(config.tcp.bind);
+  (config.tcp.modules || []).forEach(function (mod) {
     if (mod.name === 'forward') {
       var forwarder = createTcpForwarder(mod);
       mod.ports.forEach(function (port) {
@@ -502,19 +511,6 @@ module.exports.create = function (deps, config) {
   // Even though these ports were specified in different places we treat any TCP
   // connections we haven't been told to just forward exactly as is equal so that
   // we can potentially use the same ports for different protocols.
-  function addPorts(bindList) {
-    if (!bindList) {
-      return;
-    }
-    if (Array.isArray(bindList)) {
-      bindList.forEach(function (port) {
-        tcpPortMap[port] = true;
-      });
-    }
-    else {
-      tcpPortMap[bindList] = true;
-    }
-  }
   addPorts(config.tls.bind);
   addPorts(config.http.bind);