diff --git a/swift/Sources/FlatBuffers/FlatBuffersUtils.swift b/swift/Sources/FlatBuffers/FlatBuffersUtils.swift
index dc5f785..9941bd2 100644
--- a/swift/Sources/FlatBuffers/FlatBuffersUtils.swift
+++ b/swift/Sources/FlatBuffers/FlatBuffersUtils.swift
@@ -14,7 +14,11 @@
  * limitations under the License.
  */
 
+#if !os(WASI)
 import Foundation
+#else
+import SwiftOverlayShims
+#endif
 
 /// FlatBuffersUtils hosts some utility functions that might be useful
 public enum FlatBuffersUtils {