diff --git a/swift/Sources/FlatBuffers/Struct.swift b/swift/Sources/FlatBuffers/Struct.swift
index ac701d4..9996f44 100644
--- a/swift/Sources/FlatBuffers/Struct.swift
+++ b/swift/Sources/FlatBuffers/Struct.swift
@@ -14,7 +14,11 @@
  * limitations under the License.
  */
 
+#if !os(WASI)
 import Foundation
+#else
+import SwiftOverlayShims
+#endif
 
 /// Struct is a representation of a mutable `Flatbuffers` struct
 /// since native structs are value types and cant be mutated