diff --git a/Sources/YData/Extensions/Substring.swift b/Sources/YData/Extensions/Substring.swift
new file mode 100644
index 0000000..5d302de
--- /dev/null
+++ b/Sources/YData/Extensions/Substring.swift
@@ -0,0 +1,5 @@
+import Foundation
+
+public extension Substring {
+  var string: String { String(self) }
+}