diff --git a/lib/file.js b/lib/file.js
index 60b835496..92d5e89b8 100644
--- a/lib/file.js
+++ b/lib/file.js
@@ -220,7 +220,7 @@ var File = Object.derive(function() {
   this._likes = {};
   this.defineLikes();
 
-  if (_.isTextFile(rExt)) {
+  if (_.isTextFile(ext)) {
     this._isImage = false;
     this._isText = true;
     this.charset = null;
@@ -266,7 +266,7 @@ var File = Object.derive(function() {
         this.isJsonLike = true;
         break;
     }
-  } else if (_.isImageFile(rExt)) {
+  } else if (_.isImageFile(ext)) {
     // this.useDomain = true;
     // this.useHash = rExt !== '.ico';
   } else {