diff --git a/src/errors.h b/src/errors.h
index b021f82..b8e9419 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -3249,3 +3249,7 @@
 #endif
 EXTERN char e_cannot_use_s_backslash_in_vim9_script[]
 	INIT(= N_("E1270: Cannot use :s\\/sub/ in Vim9 script"));
+#ifdef FEAT_EVAL
+EXTERN char e_compiling_closure_without_context_str[]
+	INIT(= N_("E1271: compiling closure without context: %s"));
+#endif