diff --git a/dlls/winmm/tests/mci.c b/dlls/winmm/tests/mci.c
index 5c9185e3e36..0cbe57e644c 100644
--- a/dlls/winmm/tests/mci.c
+++ b/dlls/winmm/tests/mci.c
@@ -668,10 +668,6 @@ static void test_recordWAVE(HWND hwnd)
     ok(!err,"mci status samplespersec returned %s\n", dbg_mcierr(err));
     if(!err) ok(!strcmp(buf,"11025"), "mci status samplespersec expected 11025, got: %s\n", buf);
 
-    /* MCI seems to solely support PCM, no need for ACM conversion. */
-    err = mciSendStringA("set x format tag 2", NULL, 0, NULL);
-    ok(err==MCIERR_OUTOFRANGE,"mci set format tag 2 returned %s\n", dbg_mcierr(err));
-
     /* MCI appears to scan the available devices for support of this format,
      * returning MCIERR_OUTOFRANGE on machines with no sound.
      * However some w2k8/w7 machines return no error when there's no wave