diff --git a/dlls/quartz/acmwrapper.c b/dlls/quartz/acmwrapper.c
index cf8e7cd125d..8e1b5e6b773 100644
--- a/dlls/quartz/acmwrapper.c
+++ b/dlls/quartz/acmwrapper.c
@@ -520,8 +520,11 @@ HRESULT acm_wrapper_create(IUnknown *outer, IUnknown **out)
     strmbase_filter_init(&object->filter, outer, &CLSID_ACMWrapper, &filter_ops);
 
     strmbase_sink_init(&object->sink, &object->filter, L"In", &sink_ops, NULL);
+    wcscpy(object->sink.pin.name, L"Input");
 
     strmbase_source_init(&object->source, &object->filter, L"Out", &source_ops);
+    wcscpy(object->source.pin.name, L"Output");
+
     object->source_IQualityControl_iface.lpVtbl = &source_qc_vtbl;
     strmbase_passthrough_init(&object->passthrough, (IUnknown *)&object->source.pin.IPin_iface);
     ISeekingPassThru_Init(&object->passthrough.ISeekingPassThru_iface, FALSE,
diff --git a/dlls/quartz/tests/acmwrapper.c b/dlls/quartz/tests/acmwrapper.c
index 564daa3a6f9..caeca61ae50 100644
--- a/dlls/quartz/tests/acmwrapper.c
+++ b/dlls/quartz/tests/acmwrapper.c
@@ -380,7 +380,7 @@ static void test_pin_info(void)
     ok(hr == S_OK, "Got hr %#lx.\n", hr);
     ok(info.pFilter == filter, "Expected filter %p, got %p.\n", filter, info.pFilter);
     ok(info.dir == PINDIR_INPUT, "Got direction %d.\n", info.dir);
-    todo_wine ok(!wcscmp(info.achName, L"Input"), "Got name %s.\n", debugstr_w(info.achName));
+    ok(!wcscmp(info.achName, L"Input"), "Got name %s.\n", debugstr_w(info.achName));
     ref = get_refcount(filter);
     ok(ref == 3, "Got unexpected refcount %ld.\n", ref);
     ref = get_refcount(pin);
@@ -411,7 +411,7 @@ static void test_pin_info(void)
     ok(hr == S_OK, "Got hr %#lx.\n", hr);
     ok(info.pFilter == filter, "Expected filter %p, got %p.\n", filter, info.pFilter);
     ok(info.dir == PINDIR_OUTPUT, "Got direction %d.\n", info.dir);
-    todo_wine ok(!wcscmp(info.achName, L"Output"), "Got name %s.\n", debugstr_w(info.achName));
+    ok(!wcscmp(info.achName, L"Output"), "Got name %s.\n", debugstr_w(info.achName));
     IBaseFilter_Release(info.pFilter);
 
     hr = IPin_QueryDirection(pin, &dir);