diff --git a/src/errors.h b/src/errors.h
index 4424337..c8eaac7 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -1658,8 +1658,7 @@
 	INIT(= N_("E647: Invalid buffer identifier in setDot"));
 EXTERN char e_invalid_buffer_identifier_in_close[]
 	INIT(= N_("E648: Invalid buffer identifier in close"));
-EXTERN char e_invalid_buffer_identifier_in_close_2[]
-	INIT(= N_("E649: Invalid buffer identifier in close"));
+// E649 unused
 EXTERN char e_invalid_buffer_identifier_in_defineannotype[]
 	INIT(= N_("E650: Invalid buffer identifier in defineAnnoType"));
 EXTERN char e_invalid_buffer_identifier_in_addanno[]