diff --git a/lib/Cake/Network/Email/CakeEmail.php b/lib/Cake/Network/Email/CakeEmail.php
index becbdcf5aa2..d6c7eea3c83 100644
--- a/lib/Cake/Network/Email/CakeEmail.php
+++ b/lib/Cake/Network/Email/CakeEmail.php
@@ -1386,7 +1386,7 @@ protected function _attachFiles($boundary = null) {
  */
 	protected function _readFile($path) {
 		$File = new File($path);
-		return $File->readBase64();
+		return chunk_split(base64_encode($File->read()));
 	}
 
 /**
diff --git a/lib/Cake/Utility/File.php b/lib/Cake/Utility/File.php
index e10ee9c75ff..828da7fa387 100644
--- a/lib/Cake/Utility/File.php
+++ b/lib/Cake/Utility/File.php
@@ -180,17 +180,6 @@ public function read($bytes = false, $mode = 'rb', $force = false) {
 		return trim($data);
 	}
 
-/**
- * Return the contents of this File as a base64 version of the file contents.
- * The string is split into smaller chunks to match RFC 2045 semantics.
- *
- * @return string File contents in base64 encoding
- * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#File::readBase64
- */
-	public function readBase64() {
-		return chunk_split(base64_encode($this->read()));
-	}
-
 /**
  * Sets or gets the offset for the currently opened file.
  *