diff --git a/os/halnew/osal/chibios/osal.h b/os/halnew/osal/chibios/osal.h
index ca3c3f8b5..726782d8b 100644
--- a/os/halnew/osal/chibios/osal.h
+++ b/os/halnew/osal/chibios/osal.h
@@ -316,6 +316,7 @@ static inline void osalSysUnlockFromISR(void) {
   chSysUnlockFromISR();
 }
 
+#if CH_PORT_SUPPORTS_RT || defined(__DOXYGEN__)
 /**
  * @brief   Polled delay.
  * @note    The real delay is always few cycles in excess of the specified
@@ -329,6 +330,7 @@ static inline void osalSysPolledDelayX(rtcnt_t cycles) {
 
   chSysPolledDelayX(cycles);
 }
+#endif
 
 /**
  * @brief   Systick callback for the underlying OS.
diff --git a/os/kernel/src/chsys.c b/os/kernel/src/chsys.c
index 7057a7e01..cd4832831 100644
--- a/os/kernel/src/chsys.c
+++ b/os/kernel/src/chsys.c
@@ -246,7 +246,6 @@ void chSysRestoreLockX(syssts_t sts) {
   }
 }
 
-
 #if CH_PORT_SUPPORTS_RT || defined(__DOXYGEN__)
 /**
  * @brief   Realtime window test.