diff --git a/libraries/libldap_r/thr_stub.c b/libraries/libldap_r/thr_stub.c
index 1eabb5b7a1..1dce9d160b 100644
--- a/libraries/libldap_r/thr_stub.c
+++ b/libraries/libldap_r/thr_stub.c
@@ -172,6 +172,14 @@ ldap_pvt_thread_pool_maxthreads ( ldap_pvt_thread_pool_t *tpool, int max_threads
 	return(0);
 }
 
+int
+ldap_pvt_thread_pool_query( ldap_pvt_thread_pool_t *tpool,
+	ldap_pvt_thread_pool_param_t param, void *value )
+{
+	*(int *)value = -1;
+	return(-1);
+}
+
 int
 ldap_pvt_thread_pool_backload (
 	ldap_pvt_thread_pool_t *pool )