diff --git a/Sources/SotoCodeGeneratorLib/Templates/shapes.swift b/Sources/SotoCodeGeneratorLib/Templates/shapes.swift
index f6e27a9..e70a116 100644
--- a/Sources/SotoCodeGeneratorLib/Templates/shapes.swift
+++ b/Sources/SotoCodeGeneratorLib/Templates/shapes.swift
@@ -17,7 +17,12 @@ extension Templates {
     {{%CONTENT_TYPE:TEXT}}
     {{>header}}
 
+    #if os(macOS)
     import Foundation
+    #else
+    // swift-corelibs-foundation hasn't been updated with Sendable conformances
+    @preconcurrency import Foundation
+    #endif
     import SotoCore
 
     extension {{name}} {