diff --git a/Sources/NeonPlugin/Coordinator.swift b/Sources/NeonPlugin/Coordinator.swift
index e8a4442..3e4f597 100644
--- a/Sources/NeonPlugin/Coordinator.swift
+++ b/Sources/NeonPlugin/Coordinator.swift
@@ -9,6 +9,7 @@ import SwiftTreeSitter
 import TreeSitter
 import TreeSitterResource
 
+@MainActor
 public class Coordinator {
     private(set) var highlighter: Neon.Highlighter?
     private let language: TreeSitterLanguage