diff --git a/app/ble/ble_modem.c b/app/ble/ble_modem.c
index 79d1dfd..7ae9c0a 100644
--- a/app/ble/ble_modem.c
+++ b/app/ble/ble_modem.c
@@ -1,6 +1,7 @@
 #include "ble_modem.h"
 #include "app_common.h"
 #include "host/ble_hs.h"
+#include "FreeRTOS.h"
 #include "wm_bt_def.h"
 #include "wm_bt_app.h"
 #include "wm_bt_util.h"
@@ -57,7 +58,7 @@ bool ble_modem_off(void)
     uint8_t timeout = 0;
     while(ble_service_is_started())
     {
-        tls_os_time_delay(pdMS_TO_TICK(1));
+        tls_os_time_delay(pdMS_TO_TICKS(1));
 
         // Service is stuck ?
         if(++timeout > 10)