diff --git a/storages/backends/dropbox.py b/storages/backends/dropbox.py
index e520b3886..defcc1a42 100644
--- a/storages/backends/dropbox.py
+++ b/storages/backends/dropbox.py
@@ -108,5 +108,7 @@ def _open(self, name, mode='rb'):
         return remote_file
 
     def _save(self, name, content):
-        self.client.files_upload(content, self._full_path(name))
+        content.open()
+        self.client.files_upload(content.read(), self._full_path(name))
+        content.close()
         return name
diff --git a/tests/test_dropbox.py b/tests/test_dropbox.py
index 342a7d042..4fa998617 100644
--- a/tests/test_dropbox.py
+++ b/tests/test_dropbox.py
@@ -5,6 +5,7 @@
 )
 from django.core.files.base import ContentFile, File
 from django.test import TestCase
+from django.utils.six import BytesIO
 
 from storages.backends import dropbox
 
@@ -118,8 +119,9 @@ def test_open(self, *args):
 
     @mock.patch('dropbox.Dropbox.files_upload',
                 return_value='foo')
-    def test_save(self, *args):
-        self.storage._save('foo', b'bar')
+    def test_save(self, files_upload, *args):
+        self.storage._save('foo', File(BytesIO(b'bar'), 'foo'))
+        self.assertTrue(files_upload.called)
 
     @mock.patch('dropbox.Dropbox.files_get_temporary_link',
                 return_value=FILE_MEDIA_FIXTURE)