diff --git a/sys/d3d11/gstd3d11videosink.c b/sys/d3d11/gstd3d11videosink.c
index 275295fe17..1f1c425912 100644
--- a/sys/d3d11/gstd3d11videosink.c
+++ b/sys/d3d11/gstd3d11videosink.c
@@ -348,7 +348,8 @@ gst_d3d11_video_sink_set_caps (GstBaseSink * sink, GstCaps * caps)
   GST_OBJECT_UNLOCK (self);
 
   if (!gst_d3d11_window_prepare (self->window, GST_VIDEO_SINK_WIDTH (self),
-          GST_VIDEO_SINK_HEIGHT (self), num, den, self->dxgi_format, caps)) {
+          GST_VIDEO_SINK_HEIGHT (self), video_par_n, video_par_d,
+          self->dxgi_format, caps)) {
     GST_ERROR_OBJECT (self, "cannot create swapchain");
     return FALSE;
   }
diff --git a/sys/d3d11/gstd3d11window.c b/sys/d3d11/gstd3d11window.c
index 3f4c54b0b0..2362149554 100644
--- a/sys/d3d11/gstd3d11window.c
+++ b/sys/d3d11/gstd3d11window.c
@@ -508,7 +508,7 @@ gst_d3d11_window_on_resize (GstD3D11Device * device, GstD3D11Window * window)
 
     src_ratio = (gdouble) width / height;
     dst_ratio =
-        (gdouble) window->surface_width / window->surface_height * aspect_ratio;
+        (gdouble) window->surface_width / window->surface_height / aspect_ratio;
 
     src_rect.x = 0;
     src_rect.y = 0;