diff --git a/aging-and-disease.csl b/aging-and-disease.csl
index 86bbc3b0411..270b31b96c7 100644
--- a/aging-and-disease.csl
+++ b/aging-and-disease.csl
@@ -91,10 +91,6 @@
     </layout>
   </citation>
   <bibliography et-al-min="7" et-al-use-first="6" second-field-align="flush">
-    <sort>
-      <key macro="author-short"/>
-      <key macro="year"/>
-    </sort>
     <layout suffix=".">
       <text variable="citation-number" prefix="[" suffix="]"/>
       <group delimiter=" ">