diff --git a/tree_sitter_v/grammar.js b/tree_sitter_v/grammar.js
index 36d155c4..4d76a565 100644
--- a/tree_sitter_v/grammar.js
+++ b/tree_sitter_v/grammar.js
@@ -216,7 +216,7 @@ module.exports = grammar({
 					field('name', $.identifier),
 					optional(field('generic_parameters', $.generic_parameters)),
 					'=',
-					field('types', choice($.sum_type, $.plain_type)),
+					field('type', choice($.sum_type, $.plain_type)),
 				),
 			),