diff --git a/include/microkernel/base_api.h b/include/microkernel/base_api.h
index a731ae9be21..f4f24019cc8 100644
--- a/include/microkernel/base_api.h
+++ b/include/microkernel/base_api.h
@@ -102,6 +102,16 @@ struct k_msg {
 	} extra;
 };
 
+struct _k_mutex_struct {
+	ktask_t Owner;
+	kpriority_t OwnerCurrentPrio;
+	kpriority_t OwnerOriginalPrio;
+	int Level;
+	struct k_args *Waiters;
+	int Count;
+	int Confl;
+};
+
 typedef enum {
 	_0_TO_N = 0x00000001,
 	_1_TO_N = 0x00000002,
diff --git a/kernel/microkernel/include/micro_private_types.h b/kernel/microkernel/include/micro_private_types.h
index ed79ff41b71..42863614ebb 100644
--- a/kernel/microkernel/include/micro_private_types.h
+++ b/kernel/microkernel/include/micro_private_types.h
@@ -507,16 +507,6 @@ struct mbx_struct {
 	int Count;
 };
 
-struct mutex_struct {
-	ktask_t Owner;
-	kpriority_t OwnerCurrentPrio;
-	kpriority_t OwnerOriginalPrio;
-	int Level;
-	struct k_args *Waiters;
-	int Count;
-	int Confl;
-};
-
 struct sem_struct {
 	struct k_args *Waiters;
 	int Level;
diff --git a/kernel/microkernel/k_mutex.c b/kernel/microkernel/k_mutex.c
index 1377c719913..240a4007d72 100644
--- a/kernel/microkernel/k_mutex.c
+++ b/kernel/microkernel/k_mutex.c
@@ -72,7 +72,7 @@ void _k_mutex_lock_reply(
 	)
 {
 #ifdef CONFIG_SYS_CLOCK_EXISTS
-	struct mutex_struct *Mutex; /* pointer to internal mutex structure */
+	struct _k_mutex_struct *Mutex; /* pointer to internal mutex structure */
 	struct k_args *PrioChanger; /* used to change a task's priority level */
 	struct k_args *FirstWaiter; /* pointer to first task in wait queue */
 	kpriority_t newPriority;    /* priority level to which to drop */
@@ -88,7 +88,7 @@ void _k_mutex_lock_reply(
 		A->Time.rcode = RC_TIME;
 
 		MutexId = A->Args.l1.mutex;
-		Mutex = (struct mutex_struct *)MutexId;
+		Mutex = (struct _k_mutex_struct *)MutexId;
 
 		FirstWaiter = Mutex->Waiters;
 
@@ -170,7 +170,7 @@ void _k_mutex_lock_request(struct k_args *A /* pointer to mutex lock
 						  request arguments */
 				     )
 {
-	struct mutex_struct *Mutex; /* pointer to internal mutex structure */
+	struct _k_mutex_struct *Mutex; /* pointer to internal mutex structure */
 	int MutexId;                /* mutex ID obtained from lock request */
 	struct k_args *PrioBooster; /* used to change a task's priority level */
 	kpriority_t BoostedPrio;    /* new "boosted" priority level */
@@ -178,7 +178,7 @@ void _k_mutex_lock_request(struct k_args *A /* pointer to mutex lock
 	MutexId = A->Args.l1.mutex;
 
 
-	Mutex = (struct mutex_struct *)MutexId;
+	Mutex = (struct _k_mutex_struct *)MutexId;
 	if (Mutex->Level == 0 || Mutex->Owner == A->Args.l1.task) {
 		/* The mutex is either unowned or this is a nested lock. */
 #ifdef CONFIG_OBJECT_MONITOR
@@ -317,12 +317,12 @@ void _k_mutex_unlock(struct k_args *A /* pointer to mutex unlock
 						 request arguments */
 				    )
 {
-	struct mutex_struct *Mutex; /* pointer internal mutex structure */
+	struct _k_mutex_struct *Mutex; /* pointer internal mutex structure */
 	int MutexId;                /* mutex ID obtained from unlock request */
 	struct k_args *PrioDowner;  /* used to change a task's priority level */
 
 	MutexId = A->Args.l1.mutex;
-	Mutex = (struct mutex_struct *)MutexId;
+	Mutex = (struct _k_mutex_struct *)MutexId;
 	if (Mutex->Owner == A->Args.l1.task && --(Mutex->Level) == 0) {
 		/*
 		 * The requesting task owns the mutex and all locks
diff --git a/scripts/sysgen b/scripts/sysgen
index a93aabba528..65732505ddc 100755
--- a/scripts/sysgen
+++ b/scripts/sysgen
@@ -519,7 +519,7 @@ def kernel_main_c_mutexes():
     kernel_main_c_out("\n")
     for mutex in mutex_list:
         name = mutex[0]
-        kernel_main_c_out("struct mutex_struct _k_mutex_obj_%s = " % (name) +
+        kernel_main_c_out("struct _k_mutex_struct _k_mutex_obj_%s = " % (name) +
 		"{ANYTASK, 64, 64, 0, NULL, 0, 0};\n")
 
     # mutex object identifiers
@@ -926,7 +926,7 @@ def generate_zephyr_h_obj_ids():
     for mutex in mutex_list:
         name = mutex[0]
         zephyr_h_data += \
-            "extern struct mutex_struct _k_mutex_obj_%s;\n" % (name)
+            "extern struct _k_mutex_struct _k_mutex_obj_%s;\n" % (name)
         zephyr_h_data += \
             "#define %s ((kmutex_t)&_k_mutex_obj_%s)\n\n" % (name, name)