diff --git a/daemon/face/ethernet-face.cpp b/daemon/face/ethernet-face.cpp
index f51a8ae..0abbfff 100644
--- a/daemon/face/ethernet-face.cpp
+++ b/daemon/face/ethernet-face.cpp
@@ -301,7 +301,7 @@
   size_t mtu = ethernet::MAX_DATA_LEN;
 
 #ifdef SIOCGIFMTU
-  ifreq ifr = {};
+  ifreq ifr = boost::initialized_value;
   std::strncpy(ifr.ifr_name, m_interfaceName.c_str(), sizeof(ifr.ifr_name) - 1);
 
   if (::ioctl(m_socket->native_handle(), SIOCGIFMTU, &ifr) < 0)
diff --git a/daemon/mgmt/manager-base.cpp b/daemon/mgmt/manager-base.cpp
index 114e818..60f3bc9 100644
--- a/daemon/mgmt/manager-base.cpp
+++ b/daemon/mgmt/manager-base.cpp
@@ -118,7 +118,7 @@
 ManagerBase::onCommandValidationFailed(const shared_ptr<const Interest>& command,
                                        const std::string& error)
 {
-  NFD_LOG_DEBUG("command result: unauthorized command: " << *command);
+  NFD_LOG_DEBUG("command result: unauthorized command: " << *command << " (" << error << ")");
   sendResponse(command->getName(), 403, "Unauthorized command");
 }