diff --git a/dll/win32/wdmaud.drv/legacy.c b/dll/win32/wdmaud.drv/legacy.c
index 00c9507341..29d97e25b8 100644
--- a/dll/win32/wdmaud.drv/legacy.c
+++ b/dll/win32/wdmaud.drv/legacy.c
@@ -519,6 +519,17 @@ WdmAudSetWaveDeviceFormatByLegacy(
     DeviceInfo.u.WaveFormatEx.nSamplesPerSec = WaveFormat->nSamplesPerSec;
     DeviceInfo.u.WaveFormatEx.nBlockAlign = WaveFormat->nBlockAlign;
     DeviceInfo.u.WaveFormatEx.nAvgBytesPerSec = WaveFormat->nAvgBytesPerSec;
+
+    if (DeviceInfo.u.WaveFormatEx.nSamplesPerSec == 0)
+    {
+        DPRINT1("DeviceInfo.u.WaveFormatEx.nSamplesPerSec is zero. Using 44100 instead.\n");
+        DeviceInfo.u.WaveFormatEx.nSamplesPerSec = 44100;
+    }
+    if (DeviceInfo.u.WaveFormatEx.nChannels == 0)
+    {
+        DPRINT1("DeviceInfo.u.WaveFormatEx.nChannels is zero. Using 2 instead.\n");
+        DeviceInfo.u.WaveFormatEx.nChannels = 2;
+    }
     DeviceInfo.u.WaveFormatEx.wBitsPerSample = (DeviceInfo.u.WaveFormatEx.nAvgBytesPerSec * 8) / (DeviceInfo.u.WaveFormatEx.nSamplesPerSec * DeviceInfo.u.WaveFormatEx.nChannels);
 #endif