diff --git a/test/clientside/run.js b/test/clientside/run.js
index 99a117b..bf1a1bf 100644
--- a/test/clientside/run.js
+++ b/test/clientside/run.js
@@ -50,6 +50,7 @@ var clientTests = [
   , 'noCallThru'
   , 'argument-validation'
   , 'falsy'
+  , 'use-strict'
 ];
 
 compileAll(clientTests, function (err, results) {
diff --git a/test/clientside/use-strict.js b/test/clientside/use-strict.js
new file mode 100644
index 0000000..b9f2cfe
--- /dev/null
+++ b/test/clientside/use-strict.js
@@ -0,0 +1,18 @@
+// comments are ok before 'use strict'
+'use strict'
+
+var proxyquire = require('proxyquireify')(require)
+var barber = {
+  bar: function () { return 'barber' }
+}
+
+function proxy () {
+  // missing var declaration throws in strict-mode, otherwise not
+  foober =  proxyquire('../fixtures/foo', { './bar': barber })
+  return foober
+}
+
+test('\nstrict mode compliant', function (t) {
+  t.throws(proxy, new ReferenceError('foober is not defined'), 'strict mode is active')
+  t.end()
+})