diff --git a/xbmc/rendering/dx/RenderSystemDX.cpp b/xbmc/rendering/dx/RenderSystemDX.cpp
index 1666c8774c7a7..3cfa1cef14910 100644
--- a/xbmc/rendering/dx/RenderSystemDX.cpp
+++ b/xbmc/rendering/dx/RenderSystemDX.cpp
@@ -220,8 +220,8 @@ void CRenderSystemDX::GetClosestDisplayModeToCurrent(IDXGIOutput* output, DXGI_M
     DXGI_MODE_DESC current;
     current.Width = devMode.dmPelsWidth;
     current.Height = devMode.dmPelsHeight;
-    current.RefreshRate.Numerator = useDefaultRefreshRate ? 0 : devMode.dmDisplayFrequency;
-    current.RefreshRate.Denominator = useDefaultRefreshRate ? 0 : 1;
+    current.RefreshRate.Numerator = useDefaultRefreshRate ? 0 : MathUtils::round_int(devMode.dmDisplayFrequency * 1000.0);
+    current.RefreshRate.Denominator = useDefaultRefreshRate ? 0 : 1000;
     current.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
     current.ScanlineOrdering = m_interlaced ? DXGI_MODE_SCANLINE_ORDER_UPPER_FIELD_FIRST : DXGI_MODE_SCANLINE_ORDER_PROGRESSIVE;
     current.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
@@ -323,8 +323,8 @@ void CRenderSystemDX::SetFullScreenInternal()
     toMatchMode.Width = m_nBackBufferWidth;
     toMatchMode.Height = m_nBackBufferHeight;
     bool useDefaultRefreshRate = 0 == m_refreshRate;
-    toMatchMode.RefreshRate.Numerator = useDefaultRefreshRate ? 0 : m_refreshRate;
-    toMatchMode.RefreshRate.Denominator = useDefaultRefreshRate ? 0 : 1;
+    toMatchMode.RefreshRate.Numerator = useDefaultRefreshRate ? 0 : MathUtils::round_int(m_refreshRate * 1000.0);
+    toMatchMode.RefreshRate.Denominator = useDefaultRefreshRate ? 0 : 1000;
     toMatchMode.Format = scDesc.BufferDesc.Format;
     toMatchMode.Scaling = scDesc.BufferDesc.Scaling;
     toMatchMode.ScanlineOrdering = scDesc.BufferDesc.ScanlineOrdering;