diff --git a/lolex.js b/lolex.js
index 21430579..d7a110ca 100644
--- a/lolex.js
+++ b/lolex.js
@@ -612,8 +612,13 @@ function createClock(now, loopLimit) {
 exports.createClock = createClock;
 
 exports.install = function install(target, now, toFake, loopLimit) {
-    var i,
-        l;
+    var i, l;
+
+    if (target instanceof Date) {
+        toFake = now;
+        now = target.getTime();
+        target = null;
+    }
 
     if (typeof target === "number") {
         toFake = now;
diff --git a/test/lolex-test.js b/test/lolex-test.js
index 11aa4071..4b2d2b23 100644
--- a/test/lolex-test.js
+++ b/test/lolex-test.js
@@ -45,7 +45,8 @@ describe('issue #73', function() {
     it('should install with date object', function () {
         var date = new Date('2015-09-25');
         var clock = lolex.install(date);
-        assert.same(date.clock, clock);
+        assert.same(clock.now, 1443139200000);
+        clock.uninstall();
     });
 });
 
@@ -1716,12 +1717,6 @@ describe("lolex", function () {
             assert.same(setInterval, lolex.timers.setInterval);
             assert.same(clearInterval, lolex.timers.clearInterval);
         });
-
-        it("does not be able to use date object for now", function () {
-            assert.exception(function () {
-                lolex.install(new Date(2011, 9, 1));
-            });
-        });
     });
 
     if (hrtimePresent) {