diff --git a/include/ChangeLog b/include/ChangeLog
index aef73a3a1..ac8f2848a 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,8 @@
+2009-03-17  Jason Merrill  <jason@redhat.com>
+
+	* demangle.h (enum demangle_component_type): Add
+	DEMANGLE_COMPONENT_FUNCTION_PARAM.
+
 2009-03-14  Dave Korn  <dave.korn.cygwin@gmail.com>
 
 	* coff/internal.h (struct internal_extra_pe_aouthdr):  Correct type
diff --git a/include/demangle.h b/include/demangle.h
index 28c69f5e7..eb39c7c13 100644
--- a/include/demangle.h
+++ b/include/demangle.h
@@ -221,6 +221,8 @@ enum demangle_component_type
   /* A template parameter.  This holds a number, which is the template
      parameter index.  */
   DEMANGLE_COMPONENT_TEMPLATE_PARAM,
+  /* A function parameter.  This holds a number, which is the index.  */
+  DEMANGLE_COMPONENT_FUNCTION_PARAM,
   /* A constructor.  This holds a name and the kind of
      constructor.  */
   DEMANGLE_COMPONENT_CTOR,
@@ -466,10 +468,10 @@ struct demangle_component
       int len;
     } s_string;
 
-    /* For DEMANGLE_COMPONENT_TEMPLATE_PARAM.  */
+    /* For DEMANGLE_COMPONENT_*_PARAM.  */
     struct
     {
-      /* Template parameter index.  */
+      /* Parameter index.  */
       long number;
     } s_number;