diff --git a/src/Cite.php b/src/Cite.php
index 935c1d333..c1ce1d83a 100644
--- a/src/Cite.php
+++ b/src/Cite.php
@@ -99,11 +99,6 @@ class Cite {
 	 */
 	private $referenceStack;
 
-	/**
-	 * @var CiteKeyFormatter
-	 */
-	private $citeKeyFormatter;
-
 	/**
 	 * @param Parser $parser
 	 */