diff --git a/src/pdumper.c b/src/pdumper.c
index 9b26c80a479..151c45b3348 100644
--- a/src/pdumper.c
+++ b/src/pdumper.c
@@ -2808,7 +2808,7 @@ 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_E5E54A8C3F
+#if CHECK_STRUCTS && !defined HASH_buffer_418DFE6359
 # error "buffer changed. See CHECK_STRUCTS comment in config.h."
 #endif
   struct buffer munged_buffer = *in_buffer;