diff --git a/reference/html/appendix.html b/reference/html/appendix.html
index d6b66a5d..4202be82 100644
--- a/reference/html/appendix.html
+++ b/reference/html/appendix.html
@@ -155,7 +155,7 @@ Also, you can define your own properties.
 <tbody>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">feign.client.config</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
 </tr>
 <tr>
@@ -235,7 +235,7 @@ Also, you can define your own properties.
 </tr>
 <tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">feign.httpclient.time-to-live-unit</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
+<td class="tableblock halign-left valign-top"></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">null</p></td>
 </tr>
 <tr>