diff --git a/boomerang.js b/boomerang.js
index 190cea94b..adbb8470c 100644
--- a/boomerang.js
+++ b/boomerang.js
@@ -18,7 +18,7 @@ for the full license text.
 // BOOMR function to download and execute before measuring the
 // time.  We also declare it without `var` so that we can later
 // `delete` it.  This is the only way that works on Internet Explorer
-BOOMR_start = new Date.getTime();
+BOOMR_start = new Date().getTime();
 
 // beaconing section
 // the parameter is the window
diff --git a/zzz_last_plugin.js b/zzz_last_plugin.js
index d4d5dd761..049c5d909 100644
--- a/zzz_last_plugin.js
+++ b/zzz_last_plugin.js
@@ -1 +1 @@
-BOOMR.t_end = new Date.getTime();
+BOOMR.t_end = new Date().getTime();