diff --git a/logging/rtc_event_log/encoder/rtc_event_log_encoder_unittest.cc b/logging/rtc_event_log/encoder/rtc_event_log_encoder_unittest.cc
index 57dc72d..c8b8c13 100644
--- a/logging/rtc_event_log/encoder/rtc_event_log_encoder_unittest.cc
+++ b/logging/rtc_event_log/encoder/rtc_event_log_encoder_unittest.cc
@@ -8,6 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include <cmath>
 #include <limits>
 #include <memory>
 #include <string>
diff --git a/modules/video_coding/codecs/test/videoprocessor_integrationtest.h b/modules/video_coding/codecs/test/videoprocessor_integrationtest.h
index ccbe16e..b32029d 100644
--- a/modules/video_coding/codecs/test/videoprocessor_integrationtest.h
+++ b/modules/video_coding/codecs/test/videoprocessor_integrationtest.h
@@ -11,6 +11,7 @@
 #ifndef MODULES_VIDEO_CODING_CODECS_TEST_VIDEOPROCESSOR_INTEGRATIONTEST_H_
 #define MODULES_VIDEO_CODING_CODECS_TEST_VIDEOPROCESSOR_INTEGRATIONTEST_H_
 
+#include <cmath>
 #include <memory>
 #include <string>
 #include <vector>
@@ -130,10 +131,11 @@
       return 100 * sum_delta_framesize_mismatch_layer[i] / num_frames_layer[i];
     }
     int BitrateMismatchPercent(float target_kbps) const {
-      return 100 * fabs(kbps - target_kbps) / target_kbps;
+      return 100 * std::fabs(kbps - target_kbps) / target_kbps;
     }
     int BitrateMismatchPercent(int i, float target_kbps_layer) const {
-      return 100 * fabs(kbps_layer[i] - target_kbps_layer) / target_kbps_layer;
+      return 100 * std::fabs(kbps_layer[i] - target_kbps_layer) /
+          target_kbps_layer;
     }
     int num_frames = 0;
     int num_frames_layer[kMaxNumTemporalLayers] = {0};
diff --git a/rtc_tools/event_log_visualizer/analyzer.cc b/rtc_tools/event_log_visualizer/analyzer.cc
index c351b78..0ef0803 100644
--- a/rtc_tools/event_log_visualizer/analyzer.cc
+++ b/rtc_tools/event_log_visualizer/analyzer.cc
@@ -11,6 +11,7 @@
 #include "rtc_tools/event_log_visualizer/analyzer.h"
 
 #include <algorithm>
+#include <cmath>
 #include <limits>
 #include <map>
 #include <sstream>