diff --git a/targets/TARGET_ONSEMI/TARGET_NCS36510/sleep.c b/targets/TARGET_ONSEMI/TARGET_NCS36510/sleep.c
index a05f701260..31c9a5f720 100644
--- a/targets/TARGET_ONSEMI/TARGET_NCS36510/sleep.c
+++ b/targets/TARGET_ONSEMI/TARGET_NCS36510/sleep.c
@@ -64,6 +64,8 @@ void fncs36510_deepsleep(void)
     /** Enter into deep sleep mode */
     __ISB();
     __WFI();
+    __NOP();
+    __NOP();
 
     /** Wait for the external 32MHz to be power-ed up & running
      * Re-power down the 32MHz internal osc
@@ -115,4 +117,4 @@ void fncs36510_coma(void)
     fMacRestoreFrameStoreLUT(MAC_LUT_BackUp);  */
 }
 
-#endif /* DEVICE_SLEEP */
\ No newline at end of file
+#endif /* DEVICE_SLEEP */