diff --git a/gdk/broadway/gdkdevice-broadway.c b/gdk/broadway/gdkdevice-broadway.c
index 5d5cde3720..e922c586ac 100644
--- a/gdk/broadway/gdkdevice-broadway.c
+++ b/gdk/broadway/gdkdevice-broadway.c
@@ -188,7 +188,7 @@ gdk_broadway_device_query_state (GdkDevice        *device,
   if (root_y)
     *root_y = device_root_y;
   if (win_x)
-    *win_x = device_root_y - toplevel->x;
+    *win_x = device_root_x - toplevel->x;
   if (win_y)
     *win_y = device_root_y - toplevel->y;
   if (mask)