diff --git a/proxyreader_test.go b/proxyreader_test.go
index eaa972d..e56e82a 100644
--- a/proxyreader_test.go
+++ b/proxyreader_test.go
@@ -27,16 +27,6 @@
 	return r.Reader.Read(p)
 }
 
-type testWriterTo struct {
-	*testReader
-	called bool
-}
-
-func (wt *testWriterTo) WriteTo(w io.Writer) (n int64, err error) {
-	wt.called = true
-	return wt.Reader.(io.WriterTo).WriteTo(w)
-}
-
 func TestProxyReader(t *testing.T) {
 	p := mpb.New(mpb.WithOutput(io.Discard))
 
@@ -61,11 +51,48 @@
 	}
 }
 
+type testReadCloser struct {
+	io.Reader
+	called bool
+}
+
+func (r *testReadCloser) Close() error {
+	r.called = true
+	return nil
+}
+
+func TestProxyReadCloser(t *testing.T) {
+	p := mpb.New(mpb.WithOutput(io.Discard))
+
+	reader := &testReadCloser{strings.NewReader(content), false}
+
+	bar := p.AddBar(int64(len(content)))
+
+	rc := bar.ProxyReader(reader)
+	_, _ = io.Copy(io.Discard, rc)
+	_ = rc.Close()
+
+	p.Wait()
+
+	if !reader.called {
+		t.Error("Close not called")
+	}
+}
+
+type testWriterTo struct {
+	io.Reader
+	called bool
+}
+
+func (wt *testWriterTo) WriteTo(w io.Writer) (n int64, err error) {
+	wt.called = true
+	return wt.Reader.(io.WriterTo).WriteTo(w)
+}
+
 func TestProxyWriterTo(t *testing.T) {
 	p := mpb.New(mpb.WithOutput(io.Discard))
 
-	var reader io.Reader = strings.NewReader(content)
-	writerTo := &testWriterTo{&testReader{reader, false}, false}
+	writerTo := &testWriterTo{strings.NewReader(content), false}
 
 	bar := p.AddBar(int64(len(content)))