diff --git a/Sources/NodesGenerator/YAMLDecoder.swift b/Sources/NodesGenerator/YAMLDecoder.swift
index 1da94779f..cc00b5cbc 100644
--- a/Sources/NodesGenerator/YAMLDecoder.swift
+++ b/Sources/NodesGenerator/YAMLDecoder.swift
@@ -11,4 +11,8 @@ import Codextended
 import Yams
 
 // Enables Codextended with YAMLDecoder [https://github.com/JohnSundell/Codextended]
+#if swift(>=5.9)
 extension YAMLDecoder: @retroactive AnyDecoder {}
+#else
+extension YAMLDecoder: AnyDecoder {}
+#endif