diff --git a/Sources/ResgenSwift/Generate/Model/ConfigurationFile.swift b/Sources/ResgenSwift/Generate/Model/ConfigurationFile.swift
index a152112..ba3e6f5 100644
--- a/Sources/ResgenSwift/Generate/Model/ConfigurationFile.swift
+++ b/Sources/ResgenSwift/Generate/Model/ConfigurationFile.swift
@@ -61,7 +61,7 @@ struct ConfigurationArchitecture: Codable {
         }
 
         let classDefinition = [
-            "class \(classname) {",
+            "class \(classname): Sendable {",
             children?.map { $0.getProperty(isStatic: generateStaticProperty) }.joined(separator: "\n"),
             "}"
         ]