diff --git a/os/kernel/include/chqueues.h b/os/kernel/include/chqueues.h
index b16a19609..ff90d9e5f 100644
--- a/os/kernel/include/chqueues.h
+++ b/os/kernel/include/chqueues.h
@@ -255,13 +255,13 @@ typedef GenericQueue OutputQueue;
 /**
  * @brief   Returns the empty space into an output queue.
  *
- * @param[in] iqp       pointer to an @p OutputQueue structure
+ * @param[in] oqp       pointer to an @p OutputQueue structure
  * @return              The number of empty bytes in the queue.
  * @retval 0            if the queue is full.
  *
  * @iclass
  */
-#define chOQGetEmptyI(iqp) chQSpaceI(oqp)
+#define chOQGetEmptyI(oqp) chQSpaceI(oqp)
 
 /**
  * @brief   Evaluates to @p TRUE if the specified output queue is empty.
diff --git a/readme.txt b/readme.txt
index b6ccafdc4..381b9422b 100644
--- a/readme.txt
+++ b/readme.txt
@@ -82,15 +82,17 @@
 *****************************************************************************
 
 *** 2.5.1 ***
-- FIX: Possible false detect of loaded prescaler in RTCv1 driver (bug 
+- FIX: Fixed typo in chOQGetEmptyI() macro (bug 3595910)(backported to 2.2.10
+  and 2.4.3).
+- FIX: Fixed possible false detect of loaded prescaler in RTCv1 driver (bug 
   3595489)(backported to 2.4.3).
-- FIX: Unneeded RTC initialization when HAL_USE_RTC disabled (bug 3594620)
+- FIX: Fixed unneeded RTC initialization when HAL_USE_RTC disabled
+  (bug 3594620)(backported to 2.4.3).
+- FIX: Fixed compilation issue with HAL_USE_RTC disabled (bug 3594083)
   (backported to 2.4.3).
-- FIX: Compilation issue with HAL_USE_RTC disabled (bug 3594083)(backported
+- FIX: Fixed wasting of BKP registers in RTCv1 driver (bug 3594005)(backported
   to 2.4.3).
-- FIX: Wasting of BKP registers in RTCv1 driver (bug 3594005)(backported
-  to 2.4.3).
-- FIX: Potential problem with RTC_CRL_RSF bit (bug 3593972)(backported
+- FIX: Fixed potential problem with RTC_CRL_RSF bit (bug 3593972)(backported
   to 2.4.3).
 - FIX: Fixed DMA reconfiguration problem in STM32 SPI driver (bug 3592809)
   (backported to 2.4.3).