diff --git a/src/core/ReactDOMIDOperations.js b/src/core/ReactDOMIDOperations.js
index 7cdcc6365a..2a89f7ec91 100644
--- a/src/core/ReactDOMIDOperations.js
+++ b/src/core/ReactDOMIDOperations.js
@@ -47,7 +47,7 @@ var INVALID_PROPERTY_ERRORS = {
  * @type {string}
  * @private
  */
-var textContentAccessor = getTextContentAccessor() || 'NA';
+var textContentAccessor = getTextContentAccessor();
 
 var useWhitespaceWorkaround;
 
diff --git a/src/dom/DOMChildrenOperations.js b/src/dom/DOMChildrenOperations.js
index 4786adb043..9e48b1ae9c 100644
--- a/src/dom/DOMChildrenOperations.js
+++ b/src/dom/DOMChildrenOperations.js
@@ -30,7 +30,7 @@ var getTextContentAccessor = require('getTextContentAccessor');
  * @type {string}
  * @private
  */
-var textContentAccessor = getTextContentAccessor() || 'NA';
+var textContentAccessor = getTextContentAccessor();
 
 /**
  * Inserts `childNode` as a child of `parentNode` at the `index`.