diff --git a/src/errors.h b/src/errors.h
index ed77212..cc0af8a 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -3484,6 +3484,11 @@
 	INIT(= N_("E1364: Warning: Pointer block corrupted"));
 EXTERN char e_cannot_use_a_return_type_with_new[]
 	INIT(= N_("E1365: Cannot use a return type with the \"new\" function"));
+EXTERN char e_cannot_access_private_method_str[]
+	INIT(= N_("E1366: Cannot access private method: %s"));
+
+EXTERN char e_interface_str_and_class_str_function_access_not_same[]
+	INIT(= N_("E1367: Access type of class method %s differs from interface method %s"));
 EXTERN char e_cannot_mix_positional_and_non_positional_str[]
 	INIT(= N_("E1400: Cannot mix positional and non-positional arguments: %s"));
 EXTERN char e_fmt_arg_nr_unused_str[]
@@ -3501,4 +3506,4 @@
 EXTERN char e_method_str_type_mismatch_expected_str_but_got_str[]
 	INIT(= N_("E1407: Member \"%s\": type mismatch, expected %s but got %s"));
 
-// E1366 - E1399 unused
+// E1368 - E1399 unused