diff --git a/can-route.js b/can-route.js
index 01795c0..84ff330 100644
--- a/can-route.js
+++ b/can-route.js
@@ -1,3 +1,4 @@
+"use strict";
 /*jshint -W079 */
 var Bind = require("can-bind");
 var queues = require("can-queues");
diff --git a/src/binding-proxy.js b/src/binding-proxy.js
index 5af2804..7f4d7c3 100644
--- a/src/binding-proxy.js
+++ b/src/binding-proxy.js
@@ -1,3 +1,4 @@
+"use strict";
 var canReflect = require('can-reflect');
 var canSymbol = require("can-symbol");
 var SimpleObservable = require("can-simple-observable");
diff --git a/src/deparam.js b/src/deparam.js
index 0cc382b..931553b 100644
--- a/src/deparam.js
+++ b/src/deparam.js
@@ -1,3 +1,4 @@
+"use strict";
 var deparam = require('can-deparam');
 var canReflect = require("can-reflect");
 
diff --git a/src/param.js b/src/param.js
index 811d093..eb73e02 100644
--- a/src/param.js
+++ b/src/param.js
@@ -1,3 +1,4 @@
+"use strict";
 var canReflect = require("can-reflect");
 var param = require('can-param');
 
diff --git a/src/regexps.js b/src/regexps.js
index 2796829..4b328fb 100644
--- a/src/regexps.js
+++ b/src/regexps.js
@@ -1,3 +1,4 @@
+"use strict";
 module.exports = {
     curlies: /\{\s*([\w.]+)\s*\}/g,
     colon: /\:([\w.]+)/g
diff --git a/src/register.js b/src/register.js
index 1157ba0..3600a55 100644
--- a/src/register.js
+++ b/src/register.js
@@ -1,3 +1,4 @@
+"use strict";
 // This file contains the function that allows the registration of routes
 var canReflect = require("can-reflect");
 
diff --git a/src/url-helpers.js b/src/url-helpers.js
index d67d0a1..4f2a772 100644
--- a/src/url-helpers.js
+++ b/src/url-helpers.js
@@ -1,3 +1,4 @@
+"use strict";
 var bindingProxy = require("./binding-proxy");
 var routeDeparam = require("./deparam");
 var routeParam = require("./param");