diff --git a/src/errors.h b/src/errors.h
index 53bd0cd..ecd4eb9 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -3228,3 +3228,7 @@
 EXTERN char e_critical_error_in_python3_initialization_check_your_installation[]
 	INIT(= N_("E1266: Critical error in python3 initialization, check your python3 installation"));
 #endif
+#ifdef FEAT_EVAL
+EXTERN char e_function_name_must_start_with_capital_str[]
+	INIT(= N_("E1267: Function name must start with a capital: %s"));
+#endif