diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index ab8a1286dd7..edd30215814 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -11,6 +11,7 @@
 
 2005-05-27  Benjamin Kosnik  <bkoz@redhat.com>
 
+	PR libstdc++/21674
 	* include/bits/c++config: Remove extern template use when in debug
 	mode, disable for non-weak systems.