diff --git a/History.md b/History.md
index c66a5a8fba..4d464eee58 100644
--- a/History.md
+++ b/History.md
@@ -14,6 +14,8 @@
 * Remove support for the undocumented earliestCompatibleVersion feature of the
   package system.
 
+* Fix audit-argument-checks spurious failure when an argument is NaN. #2914
+
 * Upgraded dependencies:
   - node: 0.10.33 (from 0.10.29)
   - source-map-support: 0.2.8 (from 0.2.5)
diff --git a/packages/check/match.js b/packages/check/match.js
index 61f59438cf..9b15b8e6a7 100644
--- a/packages/check/match.js
+++ b/packages/check/match.js
@@ -343,7 +343,7 @@ _.extend(ArgumentChecker.prototype, {
       // Is this value one of the arguments? (This can have a false positive if
       // the argument is an interned primitive, but it's still a good enough
       // check.)
-      // Special check for NaN, need to use underscores method for number type checking
+      // (NaN is not === to itself, so we have to check specially.)
       if (value === self.args[i] || (_.isNaN(value) && _.isNaN(self.args[i]))) {
         self.args.splice(i, 1);
         return true;