diff --git a/swift/Sources/FlatBuffers/Enum.swift b/swift/Sources/FlatBuffers/Enum.swift
index efb698b..f0e99f3 100644
--- a/swift/Sources/FlatBuffers/Enum.swift
+++ b/swift/Sources/FlatBuffers/Enum.swift
@@ -14,7 +14,11 @@
  * limitations under the License.
  */
 
+#if !os(WASI)
 import Foundation
+#else
+import SwiftOverlayShims
+#endif
 
 /// Enum is a protocol that all flatbuffers enums should conform to
 /// Since it allows us to get the actual `ByteSize` and `Value` from