diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 090a9424fd..b2d74fc8d9 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2008-11-10  Tom Tromey  <tromey@redhat.com>
+
+	* gdbtypes.c (copy_type_recursive): Clear new fields.
+
 2008-11-10  Tom Tromey  <tromey@redhat.com>
 
 	* cli/cli-cmds.c (source_script): Clean up full_pathname.  Run
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index b5a5de0e5e..5b9d0e873a 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -2977,6 +2977,7 @@ copy_type_recursive (struct objfile *objfile,
 
       nfields = TYPE_NFIELDS (type);
       TYPE_FIELDS (new_type) = xmalloc (sizeof (struct field) * nfields);
+      memset (TYPE_FIELDS (new_type), 0, sizeof (struct field) * nfields);
       for (i = 0; i < nfields; i++)
 	{
 	  TYPE_FIELD_ARTIFICIAL (new_type, i) =