diff --git a/appendices/acknowledgments.xml b/appendices/acknowledgments.xml
index 440aee8d..62b60bfe 100644
--- a/appendices/acknowledgments.xml
+++ b/appendices/acknowledgments.xml
@@ -78,7 +78,7 @@
             <ulink url="https://github.com/martin2011qi">martin2011qi</ulink>，
             <ulink url="https://github.com/vizv">vizv</ulink>，
             <ulink url="https://github.com/strugglingyouth">strugglingyouth</ulink>，
-            <ulink url="https://github.com/Athenacle">Athenacle</ulink>
+            <ulink url="https://github.com/Athenacle">Athenacle</ulink>，
             <ulink url="https://github.com/haoqixu">haoqixu</ulink>
           </para>
         </listitem>