diff --git a/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc b/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc
index a892386a67..189e1b052f 100644
--- a/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc
+++ b/webrtc/modules/rtp_rtcp/source/forward_error_correction.cc
@@ -11,6 +11,7 @@
 #include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
 
 #include <assert.h>
+#include <stdlib.h>
 #include <string.h>
 
 #include <algorithm>
diff --git a/webrtc/video_engine/stream_synchronization.cc b/webrtc/video_engine/stream_synchronization.cc
index fcff782000..6192dfa5bf 100644
--- a/webrtc/video_engine/stream_synchronization.cc
+++ b/webrtc/video_engine/stream_synchronization.cc
@@ -12,6 +12,7 @@
 
 #include <assert.h>
 #include <math.h>
+#include <stdlib.h>
 
 #include <algorithm>