diff --git a/browser.js b/browser.js
index b3941bc..13936d9 100644
--- a/browser.js
+++ b/browser.js
@@ -18,7 +18,7 @@
  * will remain to ensure logic does not differ in production.
  */
 
-var invariant = function(condition, format, a, b, c, d, e, f) {
+var invariant = function(condition, format, ...args) {
   if (process.env.NODE_ENV !== 'production') {
     if (format === undefined) {
       throw new Error('invariant requires an error message argument');
@@ -33,7 +33,6 @@ var invariant = function(condition, format, a, b, c, d, e, f) {
         'for the full error message and additional helpful warnings.'
       );
     } else {
-      var args = [a, b, c, d, e, f];
       var argIndex = 0;
       error = new Error(
         format.replace(/%s/g, function() { return args[argIndex++]; })
diff --git a/invariant.js b/invariant.js
index b543e9f..b2c0348 100644
--- a/invariant.js
+++ b/invariant.js
@@ -20,7 +20,7 @@
 
 var NODE_ENV = process.env.NODE_ENV;
 
-var invariant = function(condition, format, a, b, c, d, e, f) {
+var invariant = function(condition, format, ...args) {
   if (NODE_ENV !== 'production') {
     if (format === undefined) {
       throw new Error('invariant requires an error message argument');
@@ -35,7 +35,6 @@ var invariant = function(condition, format, a, b, c, d, e, f) {
         'for the full error message and additional helpful warnings.'
       );
     } else {
-      var args = [a, b, c, d, e, f];
       var argIndex = 0;
       error = new Error(
         format.replace(/%s/g, function() { return args[argIndex++]; })
diff --git a/invariant.js.flow b/invariant.js.flow
index 361c519..2e7c7b2 100644
--- a/invariant.js.flow
+++ b/invariant.js.flow
@@ -3,5 +3,5 @@
 declare module.exports: (
   condition: any,
   format?: string,
-  ...args: Array<any>
+  args?: Array<any>
 ) => void;