diff --git a/mingw-w64-libraries/winpthreads/include/pthread.h b/mingw-w64-libraries/winpthreads/include/pthread.h
index 384a3ac..2029713 100644
--- a/mingw-w64-libraries/winpthreads/include/pthread.h
+++ b/mingw-w64-libraries/winpthreads/include/pthread.h
@@ -279,14 +279,14 @@
 #define GENERIC_ERRORCHECK_INITIALIZER			((void *) (size_t) -2)
 #define GENERIC_RECURSIVE_INITIALIZER			((void *) (size_t) -3)
 #define GENERIC_NORMAL_INITIALIZER			((void *) (size_t) -1)
-#define PTHREAD_MUTEX_INITIALIZER			(pthread_mutex_t *)GENERIC_INITIALIZER
-#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER		(pthread_mutex_t *)GENERIC_RECURSIVE_INITIALIZER
-#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER		(pthread_mutex_t *)GENERIC_ERRORCHECK_INITIALIZER
-#define PTHREAD_NORMAL_MUTEX_INITIALIZER		(pthread_mutex_t *)GENERIC_NORMAL_INITIALIZER
+#define PTHREAD_MUTEX_INITIALIZER			(pthread_mutex_t)GENERIC_INITIALIZER
+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER		(pthread_mutex_t)GENERIC_RECURSIVE_INITIALIZER
+#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER		(pthread_mutex_t)GENERIC_ERRORCHECK_INITIALIZER
+#define PTHREAD_NORMAL_MUTEX_INITIALIZER		(pthread_mutex_t)GENERIC_NORMAL_INITIALIZER
 #define PTHREAD_DEFAULT_MUTEX_INITIALIZER		PTHREAD_NORMAL_MUTEX_INITIALIZER
-#define PTHREAD_COND_INITIALIZER			(pthread_cond_t *)GENERIC_INITIALIZER
-#define PTHREAD_RWLOCK_INITIALIZER			(pthread_rwlock_t *)GENERIC_INITIALIZER
-#define PTHREAD_SPINLOCK_INITIALIZER			(pthread_spinlock_t *)GENERIC_INITIALIZER
+#define PTHREAD_COND_INITIALIZER			(pthread_cond_t)GENERIC_INITIALIZER
+#define PTHREAD_RWLOCK_INITIALIZER			(pthread_rwlock_t)GENERIC_INITIALIZER
+#define PTHREAD_SPINLOCK_INITIALIZER			(pthread_spinlock_t)GENERIC_INITIALIZER
 
 extern void WINPTHREAD_API (**_pthread_key_dest)(void *);
 int         WINPTHREAD_API pthread_key_create(pthread_key_t *key, void (* dest)(void *));