diff --git a/libraries/AP_HAL/utility/BetterStream.h b/libraries/AP_HAL/utility/BetterStream.h
index bd2109ac5a..8a1c13bc40 100644
--- a/libraries/AP_HAL/utility/BetterStream.h
+++ b/libraries/AP_HAL/utility/BetterStream.h
@@ -22,7 +22,7 @@
 #define __AP_HAL_UTILITY_BETTERSTREAM_H__
 
 #include <stdarg.h>
-#include "../AP_HAL_Namespace.h"
+#include <AP_HAL/AP_HAL_Namespace.h>
 #include "Stream.h"
 
 /* prog_char_t: */
diff --git a/libraries/AP_HAL/utility/Print.cpp b/libraries/AP_HAL/utility/Print.cpp
index 522e9c79d6..d054a6a366 100644
--- a/libraries/AP_HAL/utility/Print.cpp
+++ b/libraries/AP_HAL/utility/Print.cpp
@@ -25,7 +25,7 @@
 #include <stdint.h>
 
 #include <AP_Math/AP_Math.h>
-#include "../AP_HAL_Namespace.h"
+#include <AP_HAL/AP_HAL_Namespace.h>
 #include "Print.h"
 using namespace AP_HAL;
 
diff --git a/libraries/AP_HAL/utility/Print.h b/libraries/AP_HAL/utility/Print.h
index f27db68ae8..8b98dbe95a 100644
--- a/libraries/AP_HAL/utility/Print.h
+++ b/libraries/AP_HAL/utility/Print.h
@@ -20,7 +20,7 @@
 #ifndef __AP_HAL_UTILITY_PRINT_H__
 #define __AP_HAL_UTILITY_PRINT_H__
 
-#include "../AP_HAL_Namespace.h"
+#include <AP_HAL/AP_HAL_Namespace.h>
 
 #include <inttypes.h>
 #include <string.h>
diff --git a/libraries/AP_HAL/utility/Stream.h b/libraries/AP_HAL/utility/Stream.h
index 105b704b2e..e382a86f86 100644
--- a/libraries/AP_HAL/utility/Stream.h
+++ b/libraries/AP_HAL/utility/Stream.h
@@ -2,7 +2,7 @@
 #ifndef __AP_HAL_UTILITY_STREAM_H__
 #define __AP_HAL_UTILITY_STREAM_H__
 
-#include "../AP_HAL_Namespace.h"
+#include <AP_HAL/AP_HAL_Namespace.h>
 #include "Print.h"
 
 /* A simple Stream library modeled after the bits we actually use