diff --git a/src/dhcp_configuration.cpp b/src/dhcp_configuration.cpp
index 33b2cbd..1822c35 100644
--- a/src/dhcp_configuration.cpp
+++ b/src/dhcp_configuration.cpp
@@ -27,11 +27,11 @@
 {
     config::Parser conf;
     {
-        auto interfaceStrList = system::getInterfaces();
-        if (!interfaceStrList.empty())
+        auto interfaces = system::getInterfaces();
+        if (!interfaces.empty())
         {
             conf.setFile(config::pathForIntfConf(manager.getConfDir(),
-                                                 *interfaceStrList.begin()));
+                                                 *interfaces[0].name));
         }
     }