From be5a6dd43105f2d4f1598325752cd4692bd1fd3c Mon Sep 17 00:00:00 2001
From: Francis Dupont <fdupont@isc.org>
Date: Fri, 17 Aug 2018 10:21:22 +0200
Subject: [PATCH] [master] missing reference in catch

---
 src/lib/dhcpsrv/parsers/dhcp_parsers.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/dhcpsrv/parsers/dhcp_parsers.cc b/src/lib/dhcpsrv/parsers/dhcp_parsers.cc
index ad2b8bcd2d..c763c98339 100644
--- a/src/lib/dhcpsrv/parsers/dhcp_parsers.cc
+++ b/src/lib/dhcpsrv/parsers/dhcp_parsers.cc
@@ -570,7 +570,7 @@ SubnetConfigParser::createSubnet(ConstElementPtr params) {
     unsigned int len;
     try {
         len = boost::lexical_cast<unsigned int>(subnet_txt.substr(pos + 1));
-    } catch (const boost::bad_lexical_cast) {
+    } catch (const boost::bad_lexical_cast&) {
         ConstElementPtr elem = params->get("subnet");
         isc_throw(DhcpConfigError, "prefix length: '" <<
                   subnet_txt.substr(pos+1) << "' is not an integer ("
-- 
2.47.2