diff --git a/dlls/winmm/tests/capture.c b/dlls/winmm/tests/capture.c
index c46d35a64f4..81d62819cc4 100644
--- a/dlls/winmm/tests/capture.c
+++ b/dlls/winmm/tests/capture.c
@@ -54,14 +54,9 @@ static void check_position(int device, HWAVEIN win, DWORD bytes,
                            LPWAVEFORMATEX pwfx )
 {
     MMTIME mmtime;
-    DWORD samples;
-    double duration;
     MMRESULT rc;
     DWORD returned;
 
-    samples=bytes/(pwfx->wBitsPerSample/8*pwfx->nChannels);
-    duration=((double)samples)/pwfx->nSamplesPerSec;
-
     mmtime.wType = TIME_BYTES;
     rc=waveInGetPosition(win, &mmtime, sizeof(mmtime));
     ok(rc==MMSYSERR_NOERROR,