diff --git a/contrib/ldapc++/src/TlsOptions.cpp b/contrib/ldapc++/src/TlsOptions.cpp
index 9db8f7a2fa2fc6da7b6359321fe07343b5e46b5e..2246e3a39ceb54b8c42fcef613288d3ed1199fd9 100644
--- a/contrib/ldapc++/src/TlsOptions.cpp
+++ b/contrib/ldapc++/src/TlsOptions.cpp
@@ -110,7 +110,8 @@ std::string TlsOptions::getStringOption( tls_option opt ) const {
 }
 
 void TlsOptions::newCtx() const {
-    int ret = ldap_set_option( m_ld, LDAP_OPT_X_TLS_NEWCTX, LDAP_OPT_ON);
+    int val = 0;
+    int ret = ldap_set_option( m_ld, LDAP_OPT_X_TLS_NEWCTX, &val);
     if ( ret != LDAP_OPT_SUCCESS )
     {
         if ( ret != LDAP_OPT_ERROR ){