diff --git a/parquet/src/arrow/async_reader.rs b/parquet/src/arrow/async_reader.rs
index c9040bf12b93..03d231f41b0f 100644
--- a/parquet/src/arrow/async_reader.rs
+++ b/parquet/src/arrow/async_reader.rs
@@ -112,7 +112,7 @@ impl<T: AsyncRead + AsyncSeek + Unpin> ParquetRecordBatchStreamBuilder<T> {
     /// Only read data from the provided column indexes
     pub fn with_projection(self, projection: Vec<usize>) -> Self {
         Self {
-            projection: Some(projection.into()),
+            projection: Some(projection),
             ..self
         }
     }
@@ -339,7 +339,7 @@ async fn read_footer<T: AsyncRead + AsyncSeek + Unpin>(
     let mut buf = [0_u8; 8];
     input.read_exact(&mut buf).await?;
 
-    if &buf[4..] != PARQUET_MAGIC {
+    if buf[4..] != PARQUET_MAGIC {
         return Err(general_err!("Invalid Parquet file. Corrupt footer"));
     }