1 files changed, 6 insertions, 5 deletions
diff --git a/deps/npm/node_modules/once/once.js b/deps/npm/node_modules/once/once.js
index effc50a47..0770a73cd 100644
--- a/deps/npm/node_modules/once/once.js
+++ b/deps/npm/node_modules/once/once.js
@@ -10,10 +10,11 @@ once.proto = once(function () {
 })
 
 function once (fn) {
-  var called = false
-  return function () {
-    if (called) return
-    called = true
-    return fn.apply(this, arguments)
+  var f = function () {
+    if (f.called) return f.value
+    f.called = true
+    return f.value = fn.apply(this, arguments)
   }
+  f.called = false
+  return f
 }