diff --git a/libvo/w32_common.c b/libvo/w32_common.c
index 9062f6898d..7674ba894b 100644
--- a/libvo/w32_common.c
+++ b/libvo/w32_common.c
@@ -380,10 +380,13 @@ int vo_w32_config(uint32_t width, uint32_t height, uint32_t flags) {
     o_dwidth = width;
     o_dheight = height;
 
+    if (WinID < 0) {
+    // the desired size is ignored in wid mode, it always matches the window size.
     prev_width = vo_dwidth = width;
     prev_height = vo_dheight = height;
     prev_x = vo_dx;
     prev_y = vo_dy;
+    }
 
     vo_fs = flags & VOFLAG_FULLSCREEN;
     vo_vm = flags & VOFLAG_MODESWITCHING;