diff --git a/webrtc/modules/audio_coding/main/acm2/call_statistics.cc b/webrtc/modules/audio_coding/main/acm2/call_statistics.cc
index 9153325..4c3e9fc 100644
--- a/webrtc/modules/audio_coding/main/acm2/call_statistics.cc
+++ b/webrtc/modules/audio_coding/main/acm2/call_statistics.cc
@@ -10,7 +10,7 @@
 
 #include "webrtc/modules/audio_coding/main/acm2/call_statistics.h"
 
-#include <cassert>
+#include <assert.h>
 
 namespace webrtc {
 
diff --git a/webrtc/modules/audio_coding/main/acm2/initial_delay_manager_unittest.cc b/webrtc/modules/audio_coding/main/acm2/initial_delay_manager_unittest.cc
index 1e129f3..15e88a5 100644
--- a/webrtc/modules/audio_coding/main/acm2/initial_delay_manager_unittest.cc
+++ b/webrtc/modules/audio_coding/main/acm2/initial_delay_manager_unittest.cc
@@ -8,7 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include <cstring>
+#include <string.h>
 
 #include "gtest/gtest.h"
 #include "webrtc/modules/audio_coding/main/acm2/initial_delay_manager.h"
diff --git a/webrtc/modules/audio_coding/neteq4/neteq_unittest.cc b/webrtc/modules/audio_coding/neteq4/neteq_unittest.cc
index b337276..32f5bf4 100644
--- a/webrtc/modules/audio_coding/neteq4/neteq_unittest.cc
+++ b/webrtc/modules/audio_coding/neteq4/neteq_unittest.cc
@@ -14,10 +14,10 @@
 
 #include "webrtc/modules/audio_coding/neteq4/interface/neteq.h"
 
+#include <math.h>
 #include <stdlib.h>
 #include <string.h>  // memset
 
-#include <cmath>
 #include <set>
 #include <string>
 #include <vector>