diff --git a/dlls/quartz/tests/avidec.c b/dlls/quartz/tests/avidec.c
index 0e1e92a9509..9505bfb591d 100644
--- a/dlls/quartz/tests/avidec.c
+++ b/dlls/quartz/tests/avidec.c
@@ -967,6 +967,7 @@ static void test_connect_pin(void)
     ok(hr == S_OK, "Got hr %#x.\n", hr);
     ok(compare_media_types(&mt, &req_mt), "Media types didn't match.\n");
     ok(compare_media_types(&testsource.source.pin.mt, &req_mt), "Media types didn't match.\n");
+    FreeMediaType(&mt);
 
     sink_bih = req_format.bmiHeader;
 
@@ -1072,6 +1073,7 @@ static void test_connect_pin(void)
     ok(hr == S_OK, "Got hr %#x.\n", hr);
     ok(compare_media_types(&mt, &req_mt), "Media types didn't match.\n");
     ok(compare_media_types(&testsink.sink.pin.mt, &req_mt), "Media types didn't match.\n");
+    FreeMediaType(&mt);
 
     hr = IFilterGraph2_Disconnect(graph, source);
     ok(hr == S_OK, "Got hr %#x.\n", hr);