diff --git a/mithril.closure-compiler-externs.js b/mithril.closure-compiler-externs.js
new file mode 100644
index 00000000..ed3575ca
--- /dev/null
+++ b/mithril.closure-compiler-externs.js
@@ -0,0 +1,15 @@
+var m = {
+    "render": function () {},
+    "trust": function () {},
+    "module": function () {},
+    "redraw": function () {},
+    "startComputation": function () {},
+    "endComputation": function () {},
+    "withAttr": function () {},
+    "route": function () {},
+    "prop": function () {},
+    "deferred": function () {},
+    "sync": function () {},
+    "request": function () {},
+    "deps": function () {}
+}