diff --git a/src/version.c b/src/version.c
index b5e0da2a2c..fa2ebcda98 100644
--- a/src/version.c
+++ b/src/version.c
@@ -719,6 +719,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1580,
 /**/
     1579,
 /**/
diff --git a/src/vim9type.c b/src/vim9type.c
index 62e9344ef9..1a20d9bd0d 100644
--- a/src/vim9type.c
+++ b/src/vim9type.c
@@ -1886,8 +1886,10 @@ parse_type_tuple(
     ret_type = alloc_tuple_type(typecount, type_gap);
     ret_type->tt_flags = flags;
     ret_type->tt_argcount = typecount;
-    if (tuple_type_add_types(ret_type, typecount, type_gap) == FAIL)
-	return NULL;
+    if (tuple_type_add_types(ret_type, typecount, type_gap) == FAIL) {
+	ret_type = NULL;
+	goto on_err;
+    }
     mch_memmove(ret_type->tt_args, tuple_types_ga.ga_data,
 						sizeof(type_T *) * typecount);