diff --git a/spec/mail/message_spec.rb b/spec/mail/message_spec.rb
index e2405cf58..54bc8827b 100644
--- a/spec/mail/message_spec.rb
+++ b/spec/mail/message_spec.rb
@@ -136,6 +136,14 @@ def create_mail_with_splat_args
       expect(Mail::Message.new(raw_email).part[0].header[:filename]).to be_nil
     end
 
+    it "should preserve body text" do
+      m = Mail.new
+      m.body = "Body text"
+      m.add_file(:filename => "attachment.data", :content => "a")
+
+      expect(m.body.to_s).to eq("Body text")
+    end
+
     it "should not raise a warning on having non US-ASCII characters in the header (should just handle it)" do
       expect {
         read_fixture('emails', 'plain_emails', 'raw_email_string_in_date_field.eml')