diff --git a/Sources/NIOFoundationCompat/ByteBuffer-foundation.swift b/Sources/NIOFoundationCompat/ByteBuffer-foundation.swift
index 271707ad83..fd6362bf7f 100644
--- a/Sources/NIOFoundationCompat/ByteBuffer-foundation.swift
+++ b/Sources/NIOFoundationCompat/ByteBuffer-foundation.swift
@@ -375,9 +375,17 @@ extension ByteBufferAllocator {
 }
 
 // MARK: - Conformances
+#if compiler(>=5.11)
+extension ByteBufferView: @retroactive ContiguousBytes {}
+extension ByteBufferView: @retroactive DataProtocol {}
+extension ByteBufferView: @retroactive MutableDataProtocol {}
+#else
 extension ByteBufferView: ContiguousBytes {}
+extension ByteBufferView: DataProtocol {}
+extension ByteBufferView: MutableDataProtocol {}
+#endif
 
-extension ByteBufferView: DataProtocol {
+extension ByteBufferView {
     public typealias Regions = CollectionOfOne<ByteBufferView>
 
     public var regions: CollectionOfOne<ByteBufferView> {
@@ -385,8 +393,6 @@ extension ByteBufferView: DataProtocol {
     }
 }
 
-extension ByteBufferView: MutableDataProtocol {}
-
 // MARK: - Data
 extension Data {