diff --git a/src/bool.cpp b/src/bool.cpp
new file mode 100644
index 0000000..07f4225
--- /dev/null
+++ b/src/bool.cpp
@@ -0,0 +1,39 @@
+#include "simppl/bool.h"
+
+
+namespace simppl
+{
+   
+namespace dbus
+{
+
+
+/*static*/
+void BoolCodec::encode(DBusMessageIter& iter, bool b)
+{
+   dbus_bool_t _b = b;
+   dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &_b);
+}
+
+
+/*static*/  
+void BoolCodec::decode(DBusMessageIter& iter, bool& t)
+{
+   dbus_bool_t b;
+   simppl_dbus_message_iter_get_basic(&iter, &b, DBUS_TYPE_BOOLEAN);
+   
+   t = b;
+}
+
+
+/*static*/ 
+std::ostream& BoolCodec::make_type_signature(std::ostream& os)
+{
+   return os << DBUS_TYPE_BOOLEAN_AS_STRING;
+}
+
+
+}   // namespace dbus
+
+}   // namespace simppl
+