From e9334e6d2d781e4fc98561649df445fb953e4a56 Mon Sep 17 00:00:00 2001
From: Hauke Petersen <hauke.petersen@fu-berlin.de>
Date: Tue, 12 Dec 2017 07:51:39 +0100
Subject: [PATCH] sys/timex: make NS_PER_US unsigned

---
 sys/include/timex.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/include/timex.h b/sys/include/timex.h
index af4df8a1a4..e6b3f05afe 100644
--- a/sys/include/timex.h
+++ b/sys/include/timex.h
@@ -56,7 +56,7 @@ extern "C" {
 /**
  * @brief The number of nanoseconds per microsecond
  */
-#define NS_PER_US  (1000)
+#define NS_PER_US  (1000U)
 
 /**
  * @brief The maximum length of the string representation of a timex timestamp