diff --git a/source/blender/sequencer/intern/render.cc b/source/blender/sequencer/intern/render.cc
index 65348f5dde8..493e5cf39ad 100644
--- a/source/blender/sequencer/intern/render.cc
+++ b/source/blender/sequencer/intern/render.cc
@@ -1486,7 +1486,7 @@ static ImBuf *seq_render_scene_strip(const SeqRenderData *context,
   is_frame_update = (orig_data.timeline_frame != scene->r.cfra) ||
                     (orig_data.subframe != scene->r.subframe);
 
-  if (sequencer_view3d_fn && is_preview && camera && BLI_thread_is_main()) {
+  if (sequencer_view3d_fn && is_preview && camera) {
     char err_out[256] = "unknown";
     int width, height;
     BKE_render_resolution(&scene->r, false, &width, &height);