diff --git a/nordic/app_common/app_timer.cpp b/nordic/app_common/app_timer.cpp
index 5d5b1ff..cbdd0e1 100644
--- a/nordic/app_common/app_timer.cpp
+++ b/nordic/app_common/app_timer.cpp
@@ -17,7 +17,6 @@
 #include "nrf_soc.h"
 #include "app_error.h"
 #include "nrf_delay.h"
-#include "mbed.h"
 #include "app_util.h"
 #include "app_util_platform.h"