diff --git a/modules/audio_processing/aec3/filter_analyzer.cc b/modules/audio_processing/aec3/filter_analyzer.cc
index e467862ba6..696a57c18d 100644
--- a/modules/audio_processing/aec3/filter_analyzer.cc
+++ b/modules/audio_processing/aec3/filter_analyzer.cc
@@ -116,12 +116,12 @@ void FilterAnalyzer::AnalyzeRegion(
   constexpr float kOneByBlockSize = 1.f / kBlockSize;
   for (size_t ch = 0; ch < filters_time_domain.size(); ++ch) {
     RTC_DCHECK_LT(region_.start_sample_, filters_time_domain[ch].size());
-    RTC_DCHECK_LT(filter_analysis_states_[ch].peak_index,
-                  filters_time_domain[0].size());
     RTC_DCHECK_LT(region_.end_sample_, filters_time_domain[ch].size());
 
     auto& st_ch = filter_analysis_states_[ch];
     RTC_DCHECK_EQ(h_highpass_[ch].size(), filters_time_domain[ch].size());
+    RTC_DCHECK_GT(h_highpass_[ch].size(), 0);
+    st_ch.peak_index = std::min(st_ch.peak_index, h_highpass_[ch].size() - 1);
 
     st_ch.peak_index =
         FindPeakIndex(h_highpass_[ch], st_ch.peak_index, region_.start_sample_,