diff --git a/video/video_stream_encoder.cc b/video/video_stream_encoder.cc
index 2e5a120eed..c5929efce5 100644
--- a/video/video_stream_encoder.cc
+++ b/video/video_stream_encoder.cc
@@ -1538,11 +1538,8 @@ void VideoStreamEncoder::OnFrame(Timestamp post_time,
                         << incoming_frame.ntp_time_ms()
                         << " <= " << last_captured_timestamp_
                         << ") for incoming frame. Dropping.";
-    encoder_queue_.PostTask([this, incoming_frame]() {
-      RTC_DCHECK_RUN_ON(&encoder_queue_);
-      accumulated_update_rect_.Union(incoming_frame.update_rect());
-      accumulated_update_rect_is_valid_ &= incoming_frame.has_update_rect();
-    });
+    accumulated_update_rect_.Union(incoming_frame.update_rect());
+    accumulated_update_rect_is_valid_ &= incoming_frame.has_update_rect();
     return;
   }