diff --git a/src/file.rs b/src/file.rs
index ac3c996..6e9dfb0 100644
--- a/src/file.rs
+++ b/src/file.rs
@@ -399,6 +399,12 @@ impl<'dir> File<'dir> {
     }
 }
 
+impl<'a> AsRef<File<'a>> for File<'a> {
+    fn as_ref(&self) -> &File<'a> {
+        &self
+    }
+}
+
 /// Extract the filename to display from a path, converting it from UTF-8
 /// lossily, into a String.
 ///
diff --git a/src/options.rs b/src/options.rs
index 07af65b..74cbcbb 100644
--- a/src/options.rs
+++ b/src/options.rs
@@ -349,8 +349,10 @@ impl FileFilter {
     }
 
     /// Sort the files in the given vector based on the sort field option.
-    pub fn sort_files(&self, files: &mut Vec<File>) {
-        files.sort_by(|a, b| self.compare_files(a, b));
+    pub fn sort_files<'_, F>(&self, files: &mut Vec<F>)
+    where F: AsRef<File<'_>> {
+
+        files.sort_by(|a, b| self.compare_files(a.as_ref(), b.as_ref()));
 
         if self.reverse {
             files.reverse();
@@ -358,7 +360,7 @@ impl FileFilter {
 
         if self.list_dirs_first {
             // This relies on the fact that `sort_by` is stable.
-            files.sort_by(|a, b| b.is_directory().cmp(&a.is_directory()));
+            files.sort_by(|a, b| b.as_ref().is_directory().cmp(&a.as_ref().is_directory()));
         }
     }
 
diff --git a/src/output/details.rs b/src/output/details.rs
index ed75abf..c663d91 100644
--- a/src/output/details.rs
+++ b/src/output/details.rs
@@ -229,12 +229,18 @@ impl Details {
         let mut pool = Pool::new(num_cpus::get() as u32);
         let mut file_eggs = Vec::new();
 
-        struct Egg<'_> {
+        struct Egg<'a> {
             cells:   Vec<TextCell>,
             xattrs:  Vec<Attribute>,
             errors:  Vec<(io::Error, Option<PathBuf>)>,
             dir:     Option<Dir>,
-            file:    File<'_>,
+            file:    File<'a>,
+        }
+
+        impl<'a> AsRef<File<'a>> for Egg<'a> {
+            fn as_ref(&self) -> &File<'a> {
+                &self.file
+            }
         }
 
         pool.scoped(|scoped| {
@@ -285,7 +291,7 @@ impl Details {
             }
         });
 
-        file_eggs.sort_by(|a, b| self.filter.compare_files(&a.file, &b.file));
+        self.filter.sort_files(&mut file_eggs);
 
         let num_eggs = file_eggs.len();
         for (index, egg) in file_eggs.into_iter().enumerate() {