diff --git a/lib_xua/src/hid/xua_hid_descriptor_contents.h b/lib_xua/src/hid/xua_hid_descriptor_contents.h
index 283a6d6b..31933979 100644
--- a/lib_xua/src/hid/xua_hid_descriptor_contents.h
+++ b/lib_xua/src/hid/xua_hid_descriptor_contents.h
@@ -7,9 +7,6 @@
  * This file lists the contents of the HID Endpoint descriptor returned during enumeration.
  */
 
-#ifndef _HID_DESCRIPTOR_CONTENTS_
-#define _HID_DESCRIPTOR_CONTENTS_
-
 #if (AUDIO_CLASS == 1)
 
     /* HID descriptor */
@@ -48,5 +45,3 @@
 #else
     #error "Unknown Audio Class"
 #endif
-    
-#endif // _HID_DESCRIPTOR_CONTENTS_
diff --git a/lib_xua/src/hid/xua_hid_endpoint_descriptor_contents.h b/lib_xua/src/hid/xua_hid_endpoint_descriptor_contents.h
index 105e037e..3fcef71e 100644
--- a/lib_xua/src/hid/xua_hid_endpoint_descriptor_contents.h
+++ b/lib_xua/src/hid/xua_hid_endpoint_descriptor_contents.h
@@ -7,9 +7,6 @@
  * This file lists the contents of the HID Endpoint descriptor returned during enumeration.
  */
 
-#ifndef _HID_ENDPOINT_DESCRIPTOR_CONTENTS_
-#define _HID_ENDPOINT_DESCRIPTOR_CONTENTS_
-
 #include "descriptor_defs.h"
 
 #if (AUDIO_CLASS == 1)
@@ -39,5 +36,3 @@
 #else
     #error "Unknown Audio Class"
 #endif
-
-#endif // _HID_ENDPOINT_DESCRIPTOR_CONTENTS_
diff --git a/lib_xua/src/hid/xua_hid_interface_descriptor_contents.h b/lib_xua/src/hid/xua_hid_interface_descriptor_contents.h
index 3d0d62a9..fd0c0235 100644
--- a/lib_xua/src/hid/xua_hid_interface_descriptor_contents.h
+++ b/lib_xua/src/hid/xua_hid_interface_descriptor_contents.h
@@ -7,9 +7,6 @@
  * This file lists the contents of the HID Interface descriptor returned during enumeration.
  */
 
-#ifndef _HID_INTERFACE_DESCRIPTOR_CONTENTS_
-#define _HID_INTERFACE_DESCRIPTOR_CONTENTS_
-
 #include "descriptor_defs.h"
 
 #if (AUDIO_CLASS == 1)
@@ -44,5 +41,3 @@
 #else
     #error "Unknown Audio Class"
 #endif
-
-#endif // _HID_INTERFACE_DESCRIPTOR_CONTENTS_