diff --git a/modules/audio_coding/neteq/test/delay_tool/parse_delay_file.m b/modules/audio_coding/neteq/test/delay_tool/parse_delay_file.m
index 031d8a39ee..26391243f2 100644
--- a/modules/audio_coding/neteq/test/delay_tool/parse_delay_file.m
+++ b/modules/audio_coding/neteq/test/delay_tool/parse_delay_file.m
@@ -1,3 +1,4 @@
+%  // clang-format off
 %
 %  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 %
diff --git a/modules/audio_coding/neteq/test/delay_tool/plot_neteq_delay.m b/modules/audio_coding/neteq/test/delay_tool/plot_neteq_delay.m
index 86d533fbeb..ff0bca8b8d 100644
--- a/modules/audio_coding/neteq/test/delay_tool/plot_neteq_delay.m
+++ b/modules/audio_coding/neteq/test/delay_tool/plot_neteq_delay.m
@@ -1,3 +1,4 @@
+%  // clang-format off
 %
 %  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 %
diff --git a/modules/audio_processing/test/apmtest.m b/modules/audio_processing/test/apmtest.m
index 1c8183c3ec..1367295d5d 100644
--- a/modules/audio_processing/test/apmtest.m
+++ b/modules/audio_processing/test/apmtest.m
@@ -1,3 +1,4 @@
+%  // clang-format off
 %
 %  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 %
diff --git a/tools_webrtc/matlab/maxUnwrap.m b/tools_webrtc/matlab/maxUnwrap.m
index 276c9523a4..cda48278b8 100644
--- a/tools_webrtc/matlab/maxUnwrap.m
+++ b/tools_webrtc/matlab/maxUnwrap.m
@@ -1,3 +1,4 @@
+%  // clang-format off
 function sequence = maxUnwrap(sequence, max)
 %
 % sequence = maxUnwrap(sequence, max)
diff --git a/tools_webrtc/matlab/parseLog.m b/tools_webrtc/matlab/parseLog.m
index 5d4c3f7bc1..62c9388621 100644
--- a/tools_webrtc/matlab/parseLog.m
+++ b/tools_webrtc/matlab/parseLog.m
@@ -1,3 +1,4 @@
+%  // clang-format off
 function parsed = parseLog(filename)
 %
 % parsed = parseLog(filename)
diff --git a/tools_webrtc/matlab/rtpAnalyze.m b/tools_webrtc/matlab/rtpAnalyze.m
index c51af9cca5..c64756579e 100644
--- a/tools_webrtc/matlab/rtpAnalyze.m
+++ b/tools_webrtc/matlab/rtpAnalyze.m
@@ -1,3 +1,4 @@
+%  // clang-format off
 function rtpAnalyze( input_file )
 %RTP_ANALYZE Analyze RTP stream(s) from a txt file
 %   The function takes the output from the command line tool rtp_analyze