diff --git a/src/reader.rs b/src/reader.rs
index c252ede..b788354 100644
--- a/src/reader.rs
+++ b/src/reader.rs
@@ -28,6 +28,8 @@ mod helper_traits {
     pub(crate) trait AsyncReader: AsyncRead + Unpin {}
     impl<T> AsyncReader for T where T : AsyncRead + Unpin {}
 }
+
+#[cfg(any(feature = "tokio_async", feature = "futures_async"))]
 use helper_traits::AsyncReader;
 
 /// A trait for reading VarInts from any other `Reader`.
diff --git a/src/writer.rs b/src/writer.rs
index c68f888..15c63f9 100644
--- a/src/writer.rs
+++ b/src/writer.rs
@@ -22,12 +22,14 @@ mod helper_traits {
 #[cfg(all(any(feature = "tokio_async", feature = "futures_async"), not(feature = "sendable_io_traits")))]
 mod helper_traits {
     #[cfg(feature = "tokio_async")]
-    use tokio::io::AAsyncWrite;
+    use tokio::io::AsyncWrite;
     #[cfg(feature = "futures_async")]
     use futures_util::AsyncWrite;
     pub(crate) trait AsyncWriter: AsyncWrite + Unpin {}
     impl<T> AsyncWriter for T where T : AsyncWrite + Unpin {}
 }
+
+#[cfg(any(feature = "tokio_async", feature = "futures_async"))]
 use helper_traits::AsyncWriter;
 
 /// A trait for writing integers in VarInt encoding to any `Write` type. This packs encoding and