diff --git a/mediapipe/calculators/util/top_k_scores_calculator.cc b/mediapipe/calculators/util/top_k_scores_calculator.cc
index b6bdf2f85..e613d3bbc 100644
--- a/mediapipe/calculators/util/top_k_scores_calculator.cc
+++ b/mediapipe/calculators/util/top_k_scores_calculator.cc
@@ -108,6 +108,8 @@ absl::Status TopKScoresCalculator::GetContract(CalculatorContract* cc) {
 }
 
 absl::Status TopKScoresCalculator::Open(CalculatorContext* cc) {
+  cc->SetOffset(mediapipe::TimestampDiff(0));
+
   const auto& options = cc->Options<::mediapipe::TopKScoresCalculatorOptions>();
   RET_CHECK(options.has_top_k() || options.has_threshold())
       << "Must specify at least one of the top_k and threshold fields in "