diff --git a/src/security/validator-config.cpp b/src/security/validator-config.cpp
index aa8ec27..054c843 100644
--- a/src/security/validator-config.cpp
+++ b/src/security/validator-config.cpp
@@ -32,7 +32,7 @@
   , m_certificateCache(certificateCache)
 {
   if (!static_cast<bool>(m_certificateCache))
-    m_certificateCache = make_shared<CertificateCacheTtl>(m_face.ioService());
+    m_certificateCache = make_shared<CertificateCacheTtl>(boost::ref(m_face.getIoService()));
 }
 
 void
@@ -84,6 +84,8 @@
 {
   BOOST_ASSERT(!filename.empty());
 
+  reset();
+
   if (configSection.begin() == configSection.end())
     {
       std::string msg = "Error processing configuration file";