1 files changed, 1 insertions, 0 deletions
diff --git a/010vm.cc b/010vm.cc
index f5138329..f860a953 100644
--- a/010vm.cc
+++ b/010vm.cc
@@ -58,6 +58,7 @@ struct reagent {
   // End reagent Fields
   reagent(const string& s);
   reagent() :type(NULL), value(0), initialized(false) {}
+  reagent(type_tree* t) :type(t), value(0), initialized(false) {}
   ~reagent();
   void clear();
   reagent(const reagent& original);