diff --git a/instance.cpp b/instance.cpp
index 1978ad3..6a4ab72 100644
--- a/instance.cpp
+++ b/instance.cpp
@@ -12,17 +12,19 @@
  * limitations under the License.
  *
  * Copyright:
- *      2016, Danny Robson <danny@nerdcruft.net>
+ *      2016-2017, Danny Robson <danny@nerdcruft.net>
  */
 
 #include "./instance.hpp"
 
+#include "./traits.hpp"
+
 using cruft::vk::instance;
 
 
 ///////////////////////////////////////////////////////////////////////////////
 static const VkInstanceCreateInfo DEFAULT_INFO = {
-    .sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
+    .sType = cruft::vk::structure_type_v<VkInstanceCreateInfo>,
     .pNext = nullptr,
     .flags = 0,
 
@@ -49,6 +51,12 @@ instance::create_info::create_info (const VkInstanceCreateInfo &base):
 
 
 ///////////////////////////////////////////////////////////////////////////////
+instance::instance ():
+    instance (create_info ())
+{ ; }
+
+
+//-----------------------------------------------------------------------------
 instance::instance (const create_info &info):
     instantiated (&info, nullptr)
 { ; }
diff --git a/instance.hpp b/instance.hpp
index 4cd1f8b..998f2ea 100644
--- a/instance.hpp
+++ b/instance.hpp
@@ -12,7 +12,7 @@
  * limitations under the License.
  *
  * Copyright:
- *      2016, Danny Robson <danny@nerdcruft.net>
+ *      2016-2017, Danny Robson <danny@nerdcruft.net>
  */
 
 #ifndef CRUFT_VK_INSTANCE_HPP
@@ -33,6 +33,7 @@ namespace cruft::vk {
             create_info (const VkInstanceCreateInfo&);
         };
 
+        instance ();
         instance (const create_info &info);
 
         std::set<std::string> extensions (void) const;