diff --git a/dlls/winegstreamer/wm_reader.c b/dlls/winegstreamer/wm_reader.c
index b9e1a1b3d03..bcae50e5d1e 100644
--- a/dlls/winegstreamer/wm_reader.c
+++ b/dlls/winegstreamer/wm_reader.c
@@ -85,8 +85,12 @@ static ULONG WINAPI output_props_Release(IWMOutputMediaProps *iface)
 
 static HRESULT WINAPI output_props_GetType(IWMOutputMediaProps *iface, GUID *major_type)
 {
-    FIXME("iface %p, major_type %p, stub!\n", iface, major_type);
-    return E_NOTIMPL;
+    const struct output_props *props = impl_from_IWMOutputMediaProps(iface);
+
+    TRACE("iface %p, major_type %p.\n", iface, major_type);
+
+    *major_type = props->mt.majortype;
+    return S_OK;
 }
 
 static HRESULT WINAPI output_props_GetMediaType(IWMOutputMediaProps *iface, WM_MEDIA_TYPE *mt, DWORD *size)
diff --git a/dlls/wmvcore/tests/wmvcore.c b/dlls/wmvcore/tests/wmvcore.c
index 591ecf209eb..ec66fb1bb74 100644
--- a/dlls/wmvcore/tests/wmvcore.c
+++ b/dlls/wmvcore/tests/wmvcore.c
@@ -861,12 +861,12 @@ static void test_sync_reader_types(void)
     bool got_video = false, got_audio = false;
     DWORD size, ret_size, output_number;
     WORD stream_number, stream_number2;
+    GUID majortype, majortype2;
     struct teststream stream;
     IWMStreamConfig *config;
     ULONG count, ref, i, j;
     IWMSyncReader *reader;
     IWMProfile *profile;
-    GUID majortype;
     HANDLE file;
     HRESULT hr;
     BOOL ret;
@@ -923,6 +923,12 @@ static void test_sync_reader_types(void)
         hr = IWMOutputMediaProps_GetMediaType(output_props, mt, &ret_size);
         ok(hr == S_OK, "Got hr %#x.\n", hr);
 
+        memset(&majortype2, 0xcc, sizeof(majortype2));
+        hr = IWMOutputMediaProps_GetType(output_props, &majortype2);
+        ok(hr == S_OK, "Got hr %#x.\n", hr);
+        ok(IsEqualGUID(&majortype2, &majortype), "Expected major type %s, got %s.\n",
+                debugstr_guid(&majortype), debugstr_guid(&majortype2));
+
         ref = IWMOutputMediaProps_Release(output_props);
         ok(!ref, "Got outstanding refcount %d.\n", ref);
 
@@ -981,6 +987,12 @@ static void test_sync_reader_types(void)
             else
                 check_video_type(mt);
 
+            memset(&majortype2, 0xcc, sizeof(majortype2));
+            hr = IWMOutputMediaProps_GetType(output_props, &majortype2);
+            ok(hr == S_OK, "Got hr %#x.\n", hr);
+            ok(IsEqualGUID(&majortype2, &majortype), "Expected major type %s, got %s.\n",
+                    debugstr_guid(&majortype), debugstr_guid(&majortype2));
+
             hr = IWMSyncReader_SetOutputProps(reader, output_number, output_props);
             ok(hr == S_OK, "Got hr %#x.\n", hr);
             hr = IWMSyncReader_SetOutputProps(reader, 1 - output_number, output_props);
@@ -1398,13 +1410,13 @@ static void test_async_reader_types(void)
     bool got_video = false, got_audio = false;
     DWORD size, ret_size, output_number;
     IWMReaderAdvanced2 *advanced;
+    GUID majortype, majortype2;
     struct teststream stream;
     struct callback callback;
     IWMStreamConfig *config;
     ULONG count, ref, i, j;
     IWMProfile *profile;
     IWMReader *reader;
-    GUID majortype;
     HANDLE file;
     HRESULT hr;
     BOOL ret;
@@ -1458,11 +1470,17 @@ static void test_async_reader_types(void)
         ret_size = sizeof(mt_buffer);
         hr = IWMOutputMediaProps_GetMediaType(output_props, mt, &ret_size);
         ok(hr == S_OK, "Got hr %#x.\n", hr);
+        majortype = mt->majortype;
+
+        memset(&majortype2, 0xcc, sizeof(majortype2));
+        hr = IWMOutputMediaProps_GetType(output_props, &majortype2);
+        ok(hr == S_OK, "Got hr %#x.\n", hr);
+        ok(IsEqualGUID(&majortype2, &majortype), "Expected major type %s, got %s.\n",
+                debugstr_guid(&majortype), debugstr_guid(&majortype2));
 
         ref = IWMOutputMediaProps_Release(output_props);
         ok(!ref, "Got outstanding refcount %d.\n", ref);
 
-        majortype = mt->majortype;
         if (IsEqualGUID(&majortype, &MEDIATYPE_Audio))
         {
             got_audio = true;
@@ -1538,6 +1556,12 @@ static void test_async_reader_types(void)
             else
                 check_video_type(mt);
 
+            memset(&majortype2, 0xcc, sizeof(majortype2));
+            hr = IWMOutputMediaProps_GetType(output_props, &majortype2);
+            ok(hr == S_OK, "Got hr %#x.\n", hr);
+            ok(IsEqualGUID(&majortype2, &majortype), "Expected major type %s, got %s.\n",
+                    debugstr_guid(&majortype), debugstr_guid(&majortype2));
+
             hr = IWMReader_SetOutputProps(reader, output_number, output_props);
             ok(hr == S_OK, "Got hr %#x.\n", hr);
             hr = IWMReader_SetOutputProps(reader, 1 - output_number, output_props);