diff --git a/lib/babel/transformation/helpers/build-react-transformer.js b/lib/babel/transformation/helpers/build-react-transformer.js
index 7506a305a8..3e4c5a172a 100644
--- a/lib/babel/transformation/helpers/build-react-transformer.js
+++ b/lib/babel/transformation/helpers/build-react-transformer.js
@@ -44,13 +44,15 @@ module.exports = function (exports, opts) {
   };
 
   exports.JSXAttribute = {
-    exit: function (node) {
-      var value = node.value || t.literal(true);
-
+    enter: function (node) {
+      var value = node.value;
       if (t.isLiteral(value) && isString(value.value)) {
         value.value = value.value.replace(/\n\s+/g, " ");
       }
+    },
 
+    exit: function (node) {
+      var value = node.value || t.literal(true);
       return t.inherits(t.property("init", node.name, value), node);
     }
   };