diff --git a/static/karma.src.js b/static/karma.src.js
index 93b4bf33b..1c9a0c3b8 100644
--- a/static/karma.src.js
+++ b/static/karma.src.js
@@ -103,6 +103,10 @@ var Karma = function(socket, context, navigator, location) {
     contextWindow.dump = function() {
       self.log('dump', arguments);
     };
+
+    contextWindow.alert = function(msg) {
+      self.log('alert', [msg]);
+    };
   };
 
   this.log = function(type, args) {
diff --git a/test/client/karma.spec.js b/test/client/karma.spec.js
index e2229021f..6174125e6 100644
--- a/test/client/karma.spec.js
+++ b/test/client/karma.spec.js
@@ -84,6 +84,23 @@ describe('karma', function() {
   });
 
 
+  describe('setupContext', function() {
+    it('should capture alert', function() {
+      spyOn(k, 'log');
+
+      var mockWindow = {
+        alert: function() {
+          throw 'Alert was not patched!';
+        }
+      };
+
+      k.setupContext(mockWindow);
+      mockWindow.alert('What?');
+      expect(k.log).toHaveBeenCalledWith('alert', ['What?']);
+    })
+  });
+
+
   describe('store', function() {
 
     it('should be getter/setter', function() {