diff --git a/lib/src/tree.rs b/lib/src/tree.rs
index 60ba9c8c1..08ed2dc42 100644
--- a/lib/src/tree.rs
+++ b/lib/src/tree.rs
@@ -302,14 +302,6 @@ pub enum Diff<T> {
 }
 
 impl<T> Diff<T> {
-    pub fn as_options(&self) -> (Option<&T>, Option<&T>) {
-        match self {
-            Diff::Modified(left, right) => (Some(left), Some(right)),
-            Diff::Added(right) => (None, Some(right)),
-            Diff::Removed(left) => (Some(left), None),
-        }
-    }
-
     pub fn into_options(self) -> (Option<T>, Option<T>) {
         match self {
             Diff::Modified(left, right) => (Some(left), Some(right)),
diff --git a/src/diff_util.rs b/src/diff_util.rs
index 68f77f638..347aabba3 100644
--- a/src/diff_util.rs
+++ b/src/diff_util.rs
@@ -713,12 +713,12 @@ pub fn show_types(
 ) -> io::Result<()> {
     formatter.with_label("diff", |formatter| {
         for (repo_path, diff) in tree_diff {
-            let (before, after) = diff.as_options();
+            let (before, after) = diff.into_options();
             writeln!(
                 formatter.labeled("modified"),
                 "{}{} {}",
-                diff_summary_char(before),
-                diff_summary_char(after),
+                diff_summary_char(before.as_ref()),
+                diff_summary_char(after.as_ref()),
                 workspace_command.format_file_path(&repo_path)
             )?;
         }