diff --git a/libgrive/src/util/Config.cc b/libgrive/src/util/Config.cc
index 1a19effc..539e82c0 100644
--- a/libgrive/src/util/Config.cc
+++ b/libgrive/src/util/Config.cc
@@ -34,12 +34,6 @@ const std::string	default_filename	= ".grive";
 const char			*env_name			= "GR_CONFIG";
 const std::string	default_root_folder = ".";
 
-Config::Config( const fs::path& root_path ) :
-	m_path( GetPath( root_path ) )
-{
-	m_file = Read() ;
-}
-
 Config::Config( const po::variables_map& vm )
 {
 	m_cmd.Add( "log-xml",	Json(vm.count("log-xml") > 0) ) ;
diff --git a/libgrive/src/util/Config.hh b/libgrive/src/util/Config.hh
index 8349ce33..e2c0423f 100644
--- a/libgrive/src/util/Config.hh
+++ b/libgrive/src/util/Config.hh
@@ -39,7 +39,6 @@ public :
 	struct Error : virtual Exception {} ;
 	typedef boost::error_info<struct FileTag, std::string>	File ;
 
-	Config( const fs::path& root_path ) ;
 	Config( const boost::program_options::variables_map& vm ) ;
 
 	const fs::path Filename() const ;
diff --git a/libgrive/test/util/ConfigTest.cc b/libgrive/test/util/ConfigTest.cc
index 94b3eeff..48d7602c 100644
--- a/libgrive/test/util/ConfigTest.cc
+++ b/libgrive/test/util/ConfigTest.cc
@@ -25,33 +25,41 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 #include "protocol/Json.hh"
 #include "util/log/Log.hh"
 
+#include <boost/program_options.hpp>
 #include <iostream>
 
 using namespace grut;
 using namespace gr ;
+namespace po = boost::program_options;
 
 ConfigTest::ConfigTest( )
 {
 }
 
-void ConfigTest::TestInitialiseWithEmptyString( )
+void ConfigTest::TestInitialiseWithNoPath( )
 {
-	Config config("");
-	GRUT_ASSERT_EQUAL( "/home/.grive", config.Filename().string()) ;
-}
+	po::variables_map vm;
+	po::notify(vm);
 
-void ConfigTest::TestInitialiseWithString( )
-{
-	Config config("/home/.grive");
-	GRUT_ASSERT_EQUAL( "/home/.grive", config.Filename().string()) ;
+	Config config(vm);
+	GRUT_ASSERT_EQUAL( "./.grive", config.Filename().string()) ;
 }
 
-void ConfigTest::TestInitialiseWithFileSystemPath( )
+void ConfigTest::TestInitialiseWithPath( )
 {
-	fs::path path("/home");
-	fs::path file(".grive");
-	Config config(path / file);
-	GRUT_ASSERT_EQUAL( "/home/.grive", config.Filename().string());
-}
+	char const *argv[] = { "Program", "-p", "/home/grive" };
+	int argc = 3;
 
+	po::options_description desc( "Grive options" );
+	desc.add_options()
+		( "path,p",		po::value<std::string>(), "Path to sync")
+		;
+
+	po::variables_map vm;
+	po::store(po::parse_command_line( argc, argv, desc), vm );
+	po::notify(vm);
+
+	Config config(vm);
+	GRUT_ASSERT_EQUAL( "/home/grive/.grive", config.Filename().string()) ;
+}
 
diff --git a/libgrive/test/util/ConfigTest.hh b/libgrive/test/util/ConfigTest.hh
index 90325743..f7e100d3 100644
--- a/libgrive/test/util/ConfigTest.hh
+++ b/libgrive/test/util/ConfigTest.hh
@@ -30,12 +30,11 @@ class ConfigTest : public CppUnit::TestFixture
 public :
 	ConfigTest( ) ;
 
-	// declare suit function
 	CPPUNIT_TEST_SUITE( ConfigTest ) ;
-		CPPUNIT_TEST_EXCEPTION( TestInitialiseWithEmptyString, gr::Config::Error ) ;
+		CPPUNIT_TEST( TestInitialiseWithEmptyString ) ;
 		CPPUNIT_TEST( TestInitialiseWithString ) ;
 		CPPUNIT_TEST( TestInitialiseWithFileSystemPath ) ;
-  CPPUNIT_TEST_SUITE_END();
+	CPPUNIT_TEST_SUITE_END();
 
 private :
   void TestInitialiseWithEmptyString( );