diff --git a/src/errors.h b/src/errors.h
index 40925f8..164aafd 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -641,3 +641,5 @@
 	INIT(= N_("E1228: List or Dictionary or Blob required for argument %d"));
 EXTERN char e_expected_dictionary_for_using_key_str_but_got_str[]
 	INIT(= N_("E1229: Expected dictionary for using key \"%s\", but got %s"));
+EXTERN char e_encryption_sodium_mlock_failed[]
+	INIT(= N_("E1230: encryption: sodium_mlock() failed"));