diff --git a/COPYING b/COPYING
index 6168a39..2fcb217 120000
--- a/COPYING
+++ b/COPYING
@@ -1 +1 @@
-/usr/share/automake-1.11/COPYING
\ No newline at end of file
+/usr/share/automake-1.13/COPYING
\ No newline at end of file
diff --git a/INSTALL b/INSTALL
index cbd1c80..8b641e3 120000
--- a/INSTALL
+++ b/INSTALL
@@ -1 +1 @@
-/usr/share/automake-1.11/INSTALL
\ No newline at end of file
+/usr/share/automake-1.13/INSTALL
\ No newline at end of file
diff --git a/configure.in b/configure.in
index c3d26a2..af9a240 100644
--- a/configure.in
+++ b/configure.in
@@ -94,7 +94,7 @@ AC_CHECK_PROG(have_dot, dot, yes, no)
 PKG_PROG_PKG_CONFIG
 
 # libraries
-#PKG_CHECK_MODULES([QT], [QtNetwork])
+PKG_CHECK_MODULES([QT], [QtNetwork])
 
 AC_ARG_ENABLE(pedantic,
   [AS_HELP_STRING([--enable-pedantic],
diff --git a/doc/examples/makefile.am b/doc/examples/makefile.am
index 524effd..e300c4c 100644
--- a/doc/examples/makefile.am
+++ b/doc/examples/makefile.am
@@ -36,8 +36,8 @@ openssl_engine_demo_SOURCES = openssl-engine-demo.cxx
 cardos_demo_SOURCES = cardos-demo.cxx
 suisse_id_demo_SOURCES = suisse-id-demo.cxx
 # moc_suisse-id-demo.cxx
-#suisse_id_demo_CXXFLAGS = ${QT_CFLAGS}
-#suisse_id_demo_LDADD = ${QT_LIBS}
+suisse_id_demo_CXXFLAGS = ${QT_CFLAGS}
+suisse_id_demo_LDADD = ${QT_LIBS}
 
 moc_%.cxx: %.hxx
 	moc -o $@ $<
diff --git a/doc/examples/suisse-id-demo.cxx b/doc/examples/suisse-id-demo.cxx
index 01c9ead..ace3514 100644
--- a/doc/examples/suisse-id-demo.cxx
+++ b/doc/examples/suisse-id-demo.cxx
@@ -8,6 +8,9 @@
 #include <suisse-id-demo.hxx>
 #include <mrw/args.hxx>
 
+#include <QtNetwork/QSslCertificate>
+#include <QtCore/QDateTime>
+
 int main(int argc, char** argv) try {
   std::string lib("libcvP11.so");
   mrw::args::parse(argc, argv,
@@ -53,6 +56,7 @@ int main(int argc, char** argv) try {
                <<"  r: remove all certificates"<<std::endl
                <<"  p: PIN change"<<std::endl
                <<"  i: (re-) import certificates"<<std::endl
+               <<"  z: show certificates"<<std::endl
                <<"  q: quit"<<std::endl;
       std::cin>>choice;
       try {
@@ -76,6 +80,20 @@ int main(int argc, char** argv) try {
         } else if (choice=="i") {
           TextualCycle check(*card);
           check.installCerts(true);
+        } else if (choice=="z") {
+          for (cryptoki::ObjectList::iterator cert(certs.begin());
+               cert!=certs.end(); ++cert) {
+            std::string data(cert->attribute(CKA_VALUE).value);
+            QByteArray der(QByteArray(data.data(), data.size()));
+            QSslCertificate c(der, QSsl::Der);
+            std::cout<<"Certificate info: CN="
+                     <<QString(c.subjectInfo(QSslCertificate::CommonName)
+                               .toUtf8()).toStdString()
+                     <<std::endl
+                     <<"  Valid until: "
+                     <<QString(c.expiryDate().toString().toUtf8()).toStdString()
+                     <<std::endl;
+          }
         } else if (choice=="q") {
           return 0;
         } else {