diff --git a/libweston/renderer-gl/gl-renderer.c b/libweston/renderer-gl/gl-renderer.c
index e502e7fc8..5fcf023f1 100644
--- a/libweston/renderer-gl/gl-renderer.c
+++ b/libweston/renderer-gl/gl-renderer.c
@@ -1401,10 +1401,12 @@ pixman_region_to_egl_y_invert(struct weston_output *output,
 
 	/* Translate from global to output co-ordinate space. */
 	pixman_region32_init(&transformed);
+	pixman_region32_copy(&transformed, global_region);
+	pixman_region32_translate(&transformed, -output->x, -output->y);
 	weston_transformed_region(output->width, output->height,
 				  output->transform,
 				  output->current_scale,
-				  global_region, &transformed);
+				  &transformed, &transformed);
 
 	/* If we have borders drawn around the output, shift our output damage
 	 * to account for borders being drawn around the outside, adding any