diff --git a/src/pdumper.c b/src/pdumper.c
index f0bce09cbde..c7ebb38dea5 100644
--- a/src/pdumper.c
+++ b/src/pdumper.c
@@ -2796,7 +2796,7 @@ dump_obarray (struct dump_context *ctx, Lisp_Object object)
 static dump_off
 dump_buffer (struct dump_context *ctx, const struct buffer *in_buffer)
 {
-#if CHECK_STRUCTS && !defined HASH_buffer_EBBA38AEFA
+#if CHECK_STRUCTS && !defined HASH_buffer_B02F648B82
 # error "buffer changed. See CHECK_STRUCTS comment in config.h."
 #endif
   struct buffer munged_buffer = *in_buffer;
@@ -2808,6 +2808,7 @@ dump_buffer (struct dump_context *ctx, const struct buffer *in_buffer)
   else
     eassert (buffer->window_count == -1);
   buffer->local_minor_modes_ = Qnil;
+  buffer->last_name_ = Qnil;
   buffer->last_selected_window_ = Qnil;
   buffer->display_count_ = make_fixnum (0);
   buffer->clip_changed = 0;