diff --git a/src/cli/run.rs b/src/cli/run.rs
index f2ba736..641c730 100644
--- a/src/cli/run.rs
+++ b/src/cli/run.rs
@@ -96,9 +96,14 @@ pub(crate) async fn run(
     install_hooks(&non_skipped, printer).await?;
     drop(lock);
 
-    let filenames = all_filenames(hook_stage, from_ref, to_ref, all_files, files).await?;
+    let filenames = all_filenames(hook_stage, from_ref, to_ref, all_files, files)
+        .await?
+        .into_iter()
+        .map(normalize_path)
+        .collect::<Vec<_>>();
+
     let filenames = filter_filenames(
-        filenames.par_iter().map(normalize_path),
+        filenames.par_iter(),
         project.config().files.as_deref(),
         project.config().exclude.as_deref(),
     )?
diff --git a/src/fs.rs b/src/fs.rs
index 68ee0c0..bd88a44 100644
--- a/src/fs.rs
+++ b/src/fs.rs
@@ -20,7 +20,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
-use std::borrow::Cow;
 use std::fmt::Display;
 use std::path::{Path, PathBuf};
 use std::sync::LazyLock;
@@ -186,7 +185,7 @@ pub fn copy_dir_all(src: impl AsRef<Path>, dst: impl AsRef<Path>) -> std::io::Re
 /// Normalizes a path to use `/` as a separator everywhere, even on platforms
 /// that recognize other characters as separators.
 #[cfg(unix)]
-pub(crate) fn normalize_path(path: Cow<'_, [u8]>) -> Cow<'_, [u8]> {
+pub(crate) fn normalize_path(path: String) -> String {
     // UNIX only uses /, so we're good.
     path
 }
@@ -194,14 +193,14 @@ pub(crate) fn normalize_path(path: Cow<'_, [u8]>) -> Cow<'_, [u8]> {
 /// Normalizes a path to use `/` as a separator everywhere, even on platforms
 /// that recognize other characters as separators.
 #[cfg(not(unix))]
-pub(crate) fn normalize_path(mut path: Cow<[u8]>) -> Cow<[u8]> {
+pub(crate) fn normalize_path(mut path: String) -> String {
     use std::path::is_separator;
 
     for i in 0..path.len() {
         if path[i] == b'/' || !is_separator(char::from(path[i])) {
             continue;
         }
-        path.to_mut()[i] = b'/';
+        path[i] = b'/';
     }
     path
 }