diff --git a/ext/pango/gsttextoverlay.c b/ext/pango/gsttextoverlay.c
index a92659f..beee688 100644
--- a/ext/pango/gsttextoverlay.c
+++ b/ext/pango/gsttextoverlay.c
@@ -1270,7 +1270,7 @@ gst_text_overlay_set_composition (GstTextOverlay * overlay)
   if (overlay->text_image) {
     rectangle = gst_video_overlay_rectangle_new_argb (overlay->text_image,
         overlay->image_width, overlay->image_height, 4 * overlay->image_width,
-        xpos, ypos, overlay->image_width, overlay->image_height,
+        xpos, ypos, overlay->image_width, overlay->image_height, 1,
         GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
 
     if (overlay->composition)
