diff --git a/webrtc/modules/audio_coding/neteq4/decision_logic_normal.cc b/webrtc/modules/audio_coding/neteq4/decision_logic_normal.cc
index 8688737c3e..a70f23b762 100644
--- a/webrtc/modules/audio_coding/neteq4/decision_logic_normal.cc
+++ b/webrtc/modules/audio_coding/neteq4/decision_logic_normal.cc
@@ -44,7 +44,7 @@ Operations DecisionLogicNormal::GetDecisionSpecialized(
 
   uint32_t target_timestamp = sync_buffer.end_timestamp();
   uint32_t available_timestamp = 0;
-  int is_cng_packet = 0;
+  bool is_cng_packet = false;
   if (packet_header) {
     available_timestamp = packet_header->timestamp;
     is_cng_packet =
diff --git a/webrtc/modules/audio_coding/neteq4/expand.h b/webrtc/modules/audio_coding/neteq4/expand.h
index d5bff9d494..4de8d7c55b 100644
--- a/webrtc/modules/audio_coding/neteq4/expand.h
+++ b/webrtc/modules/audio_coding/neteq4/expand.h
@@ -139,9 +139,9 @@ class Expand {
   SyncBuffer* sync_buffer_;
   RandomVector* random_vector_;
   bool first_expand_;
-  int fs_hz_;
-  size_t num_channels_;
-  size_t overlap_length_;
+  const int fs_hz_;
+  const size_t num_channels_;
+  const size_t overlap_length_;
   int consecutive_expands_;
   int16_t max_lag_;
   size_t expand_lags_[kNumLags];