1 files changed, 1 insertions, 1 deletions
diff --git a/rwlock.c b/rwlock.c
index fd3f1f7..a4cdd5f 100644
--- a/rwlock.c
+++ b/rwlock.c
@@ -182,7 +182,7 @@ pthread_rwlock_destroy(pthread_rwlock_t *rwlock)
           }
         else
           {
-            rw->rw_magic = (int) NULL;
+            rw->rw_magic = 0;
             (void) pthread_mutex_unlock(&(rw->rw_lock));
             (void) pthread_cond_destroy(&(rw->rw_condreaders));
             (void) pthread_cond_destroy(&(rw->rw_condwriters));