diff --git a/block/src/formats/qcow/internal/header.rs b/block/src/formats/qcow/internal/header.rs
index 62b7a0773..f4b677788 100644
--- a/block/src/formats/qcow/internal/header.rs
+++ b/block/src/formats/qcow/internal/header.rs
@@ -250,7 +250,7 @@ impl QcowHeader {
                         .map_err(Error::ReadingHeader)?;
                     offset += data.len() as u64;
                     let table = feature_table.as_mut().unwrap();
-                    for entry in data.chunks_exact(FEATURE_NAME_ENTRY_SIZE) {
+                    for entry in data.as_chunks::<FEATURE_NAME_ENTRY_SIZE>().0 {
                         if entry[0] == FEAT_TYPE_INCOMPATIBLE {
                             let bit_number = entry[1];
                             let name_bytes = &entry[2..];
diff --git a/block/src/formats/qcow/internal/qcow_raw_file.rs b/block/src/formats/qcow/internal/qcow_raw_file.rs
index 6ff411ee5..d1814c5e3 100644
--- a/block/src/formats/qcow/internal/qcow_raw_file.rs
+++ b/block/src/formats/qcow/internal/qcow_raw_file.rs
@@ -203,8 +203,10 @@ impl QcowRawFile {
         self.file.read_exact_at(&mut bytes, offset)?;
         let m = mask.unwrap_or(u64::MAX);
         let table = bytes
-            .chunks_exact(size_of::<u64>())
-            .map(|c| u64::from_be_bytes(c.try_into().unwrap()) & m)
+            .as_chunks::<{ size_of::<u64>() }>()
+            .0
+            .iter()
+            .map(|c| u64::from_be_bytes(*c) & m)
             .collect();
         Ok(table)
     }