diff --git a/code/nel/include/nel/sound/driver/buffer.h b/code/nel/include/nel/sound/driver/buffer.h
index f82eea5a6..5d488f1c7 100644
--- a/code/nel/include/nel/sound/driver/buffer.h
+++ b/code/nel/include/nel/sound/driver/buffer.h
@@ -21,11 +21,13 @@
 #include "nel/misc/string_mapper.h"
 #include "sound_driver.h"
 
-namespace NLMISC {
+namespace NLMISC
+{
 	class IStream;
 }
 
-namespace NLSOUND {
+namespace NLSOUND
+{
 
 /**
  * Sound buffer interface (implemented in sound driver dynamic library)
diff --git a/code/nel/include/nel/sound/driver/effect.h b/code/nel/include/nel/sound/driver/effect.h
index 2d9083f0f..34c674bf0 100644
--- a/code/nel/include/nel/sound/driver/effect.h
+++ b/code/nel/include/nel/sound/driver/effect.h
@@ -16,16 +16,14 @@
 
 #ifndef NLSOUND_EFFECT_H
 #define NLSOUND_EFFECT_H
-#include <nel/misc/types_nl.h>
+
+#include "nel/misc/types_nl.h"
 
 // STL includes
 #include <math.h>
 
-// NeL includes
-
-// Project includes
-
-namespace NLSOUND {
+namespace NLSOUND
+{
 
 ////                                             in dB    ---
 //#define NLSOUND_MATERIAL_PRESET_SINGLEWINDOW  -28.00f, 0.71f
diff --git a/code/nel/include/nel/sound/driver/listener.h b/code/nel/include/nel/sound/driver/listener.h
index 06c13a94d..c4b9b2763 100644
--- a/code/nel/include/nel/sound/driver/listener.h
+++ b/code/nel/include/nel/sound/driver/listener.h
@@ -20,7 +20,8 @@
 #include "nel/misc/types_nl.h"
 #include "nel/misc/vector.h"
 
-namespace NLSOUND {
+namespace NLSOUND
+{
 
 /// Default environmental effect
 #define ENVFX_DEFAULT_NUM 2
diff --git a/code/nel/include/nel/sound/driver/music_channel.h b/code/nel/include/nel/sound/driver/music_channel.h
index 6f0b58a5c..9878744c5 100644
--- a/code/nel/include/nel/sound/driver/music_channel.h
+++ b/code/nel/include/nel/sound/driver/music_channel.h
@@ -16,15 +16,11 @@
 
 #ifndef NLSOUND_MUSIC_CHANNEL_H
 #define NLSOUND_MUSIC_CHANNEL_H
-#include <nel/misc/types_nl.h>
 
-// STL includes
+#include "nel/misc/types_nl.h"
 
-// NeL includes
-
-// Project includes
-
-namespace NLSOUND {
+namespace NLSOUND
+{
 
 /**
  * \brief IMusicChannel
diff --git a/code/nel/include/nel/sound/driver/source.h b/code/nel/include/nel/sound/driver/source.h
index 7c56c03e1..1858e6f24 100644
--- a/code/nel/include/nel/sound/driver/source.h
+++ b/code/nel/include/nel/sound/driver/source.h
@@ -27,9 +27,10 @@
 
 #ifndef NL_SOURCE_H
 #define NL_SOURCE_H
-#include <nel/misc/types_nl.h>
 
-#include <nel/misc/vector.h>
+#include "nel/misc/types_nl.h"
+#include "nel/misc/vector.h"
+
 #include "sound_driver.h"
 
 /**