diff --git a/common/system_common.c b/common/system_common.c
index c654143695..d5da126943 100644
--- a/common/system_common.c
+++ b/common/system_common.c
@@ -731,10 +731,14 @@ int host_command_reboot(uint8_t *data, int *resp_size)
 		return EC_RES_ERROR;
 	}
 
+#ifdef CONFIG_TASK_HOSTCMD
 #ifdef CONFIG_LPC
 	/* Clean busy bits on host */
 	host_send_result(0, EC_RES_SUCCESS);
 	host_send_result(1, EC_RES_SUCCESS);
+#elif defined CONFIG_I2C
+	host_send_result(0, EC_RES_SUCCESS);
+#endif
 #endif
 
 	CPUTS("[Executing host reboot command]\n");