diff --git a/contrib/ldapc++/src/LDAPAsynConnection.cpp b/contrib/ldapc++/src/LDAPAsynConnection.cpp
index 638ba6ae8c..21242364e1 100644
--- a/contrib/ldapc++/src/LDAPAsynConnection.cpp
+++ b/contrib/ldapc++/src/LDAPAsynConnection.cpp
@@ -79,7 +79,7 @@ void LDAPAsynConnection::initialize(const std::string& uri){
 void LDAPAsynConnection::start_tls(){
     int ret = ldap_start_tls_s( cur_session, NULL, NULL );
     if( ret != LDAP_SUCCESS ) {
-        throw LDAPException(ret);
+        throw LDAPException(this);
     }
 }