diff --git a/include/misc/lists.h b/include/misc/lists.h
index 22f72980929..676a1f5827e 100644
--- a/include/misc/lists.h
+++ b/include/misc/lists.h
@@ -49,7 +49,7 @@ struct Elem {
 
 struct List {
 	struct list_elem *head;
-	struct list_elem *Tail;
+	struct list_elem *tail;
 	struct list_elem *TailPrev;
 };
 
diff --git a/include/misc/lists_c.h b/include/misc/lists_c.h
index f5aa69a36eb..42e4229a34b 100644
--- a/include/misc/lists_c.h
+++ b/include/misc/lists_c.h
@@ -45,9 +45,9 @@ Example code from list insertion etc
 
 INLINE void InitList(struct list_head *list)
 {
-	list->head = (struct list_elem *)&list->Tail;
+	list->head = (struct list_elem *)&list->tail;
 	list->TailPrev = (struct list_elem *)&list->head;
-	list->Tail = NULL;
+	list->tail = NULL;
 }
 
 INLINE unsigned int TestListEmpty(struct list_head *list)
@@ -90,7 +90,7 @@ INLINE struct list_elem *RemoveTail(struct list_head *list)
 		return NULL;  /* empty list */
 	}
 	list->TailPrev = tmpElem;
-	tmpElem->next = (struct list_elem *)&list->Tail;
+	tmpElem->next = (struct list_elem *)&list->tail;
 	return ret_Elem;
 }
 
@@ -111,7 +111,7 @@ INLINE void AddTail(struct list_head *list, struct list_elem *elem)
 	struct list_elem *tmpElem;
 	struct list_elem *tailElem;
 
-	tmpElem = (struct list_elem *)&list->Tail;
+	tmpElem = (struct list_elem *)&list->tail;
 	tailElem = tmpElem->prev;
 	tailElem->next = elem;
 	tmpElem->prev = elem;
@@ -141,7 +141,7 @@ INLINE void InsertPrio(struct list_head *list, struct list_elem *newelem)
 	struct list_elem *tmpElem;
 
 	tmpElem = (struct list_elem *)&list->head;
-	while ((tmpElem->next != (struct list_elem *)&list->Tail) && /* end of list */
+	while ((tmpElem->next != (struct list_elem *)&list->tail) && /* end of list */
 	       (tmpElem->priority <= newelem->priority)) {
 		tmpElem = tmpElem->next;
 	}
diff --git a/kernel/microkernel/include/micro_private_types.h b/kernel/microkernel/include/micro_private_types.h
index 45760b5de0f..24d6f25523e 100644
--- a/kernel/microkernel/include/micro_private_types.h
+++ b/kernel/microkernel/include/micro_private_types.h
@@ -142,7 +142,7 @@ struct k_timer {
 
 struct k_tqhd {
 	struct k_task *head;
-	struct k_task *Tail;
+	struct k_task *tail;
 };
 
 /* Monitor record */
diff --git a/kernel/microkernel/k_task.c b/kernel/microkernel/k_task.c
index 174fa132b31..7253e637a83 100644
--- a/kernel/microkernel/k_task.c
+++ b/kernel/microkernel/k_task.c
@@ -89,8 +89,8 @@ void _k_state_bit_reset(struct k_task *X,    /* ptr to task */
 		struct k_tqhd *H = _k_task_priority_list + X->priority;
 
 		X->next = NULL;
-		H->Tail->next = X;
-		H->Tail = X;
+		H->tail->next = X;
+		H->tail = X;
 		_k_task_priority_bitmap[X->priority >> 5] |= (1 << (X->priority & 0x1F));
 	}
 
@@ -167,8 +167,8 @@ void _k_state_bit_set(
 
 		cur_task->next = task_ptr->next;
 
-		if (task_queue->Tail == task_ptr) {
-			task_queue->Tail = cur_task;
+		if (task_queue->tail == task_ptr) {
+			task_queue->tail = cur_task;
 		}
 
 		/*
@@ -552,8 +552,8 @@ void _k_task_yield(struct k_args *A)
 	ARG_UNUSED(A);
 	if (X && H->head == _k_current_task) {
 		_k_current_task->next = NULL;
-		H->Tail->next = _k_current_task;
-		H->Tail = _k_current_task;
+		H->tail->next = _k_current_task;
+		H->tail = _k_current_task;
 		H->head = X;
 	}
 }