First cut of custom exception support
diff --git a/catch.hpp b/catch.hpp
index 0a241b0..488dde4 100644
--- a/catch.hpp
+++ b/catch.hpp
@@ -28,6 +28,7 @@
 #include "internal/catch_capture.hpp"
 #include "internal/catch_section.hpp"
 #include "internal/catch_generators.hpp"
+#include "internal/catch_interfaces_exception.h"
 
 //////