diff --git a/libraries/libldap_r/thr_nt.c b/libraries/libldap_r/thr_nt.c
index 1d07feaa50..2bd4474ef4 100644
--- a/libraries/libldap_r/thr_nt.c
+++ b/libraries/libldap_r/thr_nt.c
@@ -38,7 +38,7 @@ ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
 	unsigned long tid;
 	HANDLE thd;
 
-	thd = _beginthreadex( NULL, 0,
+	thd = (HANDLE) _beginthreadex( NULL, 0,
 		(LPTHREAD_START_ROUTINE) start_routine, arg,
 		0, &tid );