Fix build.
diff --git a/src/video/x11/SDL_x11modes.c b/src/video/x11/SDL_x11modes.c
index d4e3d90..4a91f07 100644
--- a/src/video/x11/SDL_x11modes.c
+++ b/src/video/x11/SDL_x11modes.c
@@ -947,7 +947,7 @@ X11_GetDisplayDPI(_THIS, SDL_VideoDisplay * sdl_display, float * ddpi, float * h
*hdpi = data->hdpi;
}
if (vdpi) {
- *vpid = data->vdpi;
+ *vdpi = data->vdpi;
}
return data->ddpi != 0.0f ? 0 : -1;