diff --git a/include/rttypes.h b/include/rttypes.h
index 01ece19bd95..fdea981fda3 100644
--- a/include/rttypes.h
+++ b/include/rttypes.h
@@ -81,7 +81,7 @@ typedef rt_ubase_t                      rt_intptr_t;    /**< Type for signed poi
 typedef rt_base_t                       rt_uintptr_t;   /**< Type for unsigned pointer length integer */
 #endif /* defined(RT_USING_LIBC) && !defined(RT_USING_NANO) */
 
-#ifdef RT_TICK_LL_UNIT
+#ifdef RT_USING_TICK_LL_UNIT
 typedef rt_uint64_t                     rt_tick_t;      /**< Type for tick count */
 #else
 typedef rt_uint32_t                     rt_tick_t;      /**< Type for tick count */
diff --git a/src/Kconfig b/src/Kconfig
index d8e03606e49..0375a571be0 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -116,7 +116,7 @@ config RT_TICK_PER_SECOND
     help
         System's tick frequency, Hz.
 
-config RT_TICK_LL_UNIT
+config RT_USING_TICK_LL_UNIT
     bool "Using long long as tick unit"
     default n
     help