diff --git a/src/uploads.ts b/src/uploads.ts
index 8fd2154d..a920351c 100644
--- a/src/uploads.ts
+++ b/src/uploads.ts
@@ -107,10 +107,8 @@ export async function toFile(
   // If it's a promise, resolve it.
   value = await value;
 
-  // If we've been given a `File` we don't need to do anything
-  if (isFileLike(value)) {
-    return value;
-  }
+  // Use the file's options if there isn't one provided
+  options ??= isFileLike(value) ? { lastModified: value.lastModified, type: value.type } : {};
 
   if (isResponseLike(value)) {
     const blob = await value.blob();
@@ -128,7 +126,7 @@ export async function toFile(
 
   name ||= getName(value) ?? 'unknown_file';
 
-  if (!options?.type) {
+  if (!options.type) {
     const type = (bits[0] as any)?.type;
     if (typeof type === 'string') {
       options = { ...options, type };
diff --git a/tests/uploads.test.ts b/tests/uploads.test.ts
index ee7e6269..94a4c9c0 100644
--- a/tests/uploads.test.ts
+++ b/tests/uploads.test.ts
@@ -54,12 +54,4 @@ describe('toFile', () => {
     const file = await toFile(input);
     expect(file.name).toEqual('uploads.test.ts');
   });
-
-  it('does not copy File objects', async () => {
-    const input = new File(['foo'], 'input.jsonl', { type: 'jsonl' });
-    const file = await toFile(input);
-    expect(file).toBe(input);
-    expect(file.name).toEqual('input.jsonl');
-    expect(file.type).toBe('jsonl');
-  });
 });