diff --git a/modules/audio_processing/aec3/reverb_decay_estimator.cc b/modules/audio_processing/aec3/reverb_decay_estimator.cc
index 95fd13af59..b0082f16ad 100644
--- a/modules/audio_processing/aec3/reverb_decay_estimator.cc
+++ b/modules/audio_processing/aec3/reverb_decay_estimator.cc
@@ -287,7 +287,7 @@ void ReverbDecayEstimator::LateReverbLinearRegressor::Reset(
   // Arithmetic sum of $2 \sum_{i=0.5}^{(N-1)/2}i^2$ calculated directly.
   nn_ = SymmetricArithmetricSum(N);
   // The linear regression approach assumes symmetric index around 0.
-  count_ = N > 0 ? count_ = -N * 0.5f + 0.5f : 0.f;
+  count_ = N > 0 ? -N * 0.5f + 0.5f : 0.f;
   N_ = N;
   n_ = 0;
 }