diff --git a/include/ChangeLog b/include/ChangeLog
index 62a5eae34..6343df66c 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2005-05-25  Richard Henderson  <rth@redhat.com>
+
+	* demangle.h (DEMANGLE_COMPONENT_HIDDEN_ALIAS): New.
+
 2005-05-24  Gabriel Dos Reis  <gdr@integrable-solutions.net>
 
 	* libiberty.h (ACONCAT): Properly cast value of alloca().
diff --git a/include/demangle.h b/include/demangle.h
index 944a95177..304a4c4e4 100644
--- a/include/demangle.h
+++ b/include/demangle.h
@@ -239,6 +239,9 @@ enum demangle_component_type
   /* A reference temporary.  This has one subtree, the name for which
      this is a temporary.  */
   DEMANGLE_COMPONENT_REFTEMP,
+  /* A hidden alias.  This has one subtree, the encoding for which it
+     is providing alternative linkage.  */
+  DEMANGLE_COMPONENT_HIDDEN_ALIAS,
   /* A standard substitution.  This holds the name of the
      substitution.  */
   DEMANGLE_COMPONENT_SUB_STD,