diff --git a/CHANGES.current b/CHANGES.current
index aba67f451..c12c5eb28 100644
--- a/CHANGES.current
+++ b/CHANGES.current
@@ -11,7 +11,7 @@ Version 4.0.2 (in progress)
             [Python] #1673 #1674 Fix setting 'this' when extending a proxy class with __slots__.
 
 2020-01-31: vadz
-            [Ruby] Add std::auto_ptr<> typemaps.
+            [Ruby] #1651 Add std::auto_ptr<> typemaps.
 
 2020-01-31: ZackerySpytz
             [Python] #1700 More robust error checking for failures in calls to Python C API: