diff --git a/yesod-core/ChangeLog.md b/yesod-core/ChangeLog.md
index be3d49f3..d8564ece 100644
--- a/yesod-core/ChangeLog.md
+++ b/yesod-core/ChangeLog.md
@@ -2,7 +2,7 @@
 
 ## 1.6.18.5
 
-Document `ErrorResponse` []()
+Document `ErrorResponse` [#1698](https://github.com/yesodweb/yesod/pull/1698)
 
 ## 1.6.18.4