diff --git a/include/xo/reflect/TypeDescr.hpp b/include/xo/reflect/TypeDescr.hpp
index 4452f09..c85b237 100644
--- a/include/xo/reflect/TypeDescr.hpp
+++ b/include/xo/reflect/TypeDescr.hpp
@@ -197,6 +197,8 @@ namespace xo {
 
             /** lookup type by canonical name **/
             static TypeDescr lookup_by_name(const std::string & canonical_name);
+
+            /** print table of reflected types to os **/
             static void print_reflected_types(std::ostream & os);
 
             TypeId id() const { return id_; }
diff --git a/src/reflect/TypeDescr.cpp b/src/reflect/TypeDescr.cpp
index c981224..2ffb59a 100644
--- a/src/reflect/TypeDescr.cpp
+++ b/src/reflect/TypeDescr.cpp
@@ -4,6 +4,7 @@
 #include "TaggedPtr.hpp"
 #include "TypeDescrExtra.hpp"
 #include "atomic/AtomicTdx.hpp"
+#include "function/FunctionTdx.hpp"
 #include "xo/indentlog/scope.hpp"
 
 namespace xo {