diff --git a/src/Value/Type.hpp b/src/Value/Type.hpp
index 834926c..95ba57e 100644
--- a/src/Value/Type.hpp
+++ b/src/Value/Type.hpp
@@ -49,7 +49,7 @@ namespace Fig
     public:
         std::size_t operator()(const TypeInfo &ti) const
         {
-            return ti.id;
+            return std::hash<size_t>{}(ti.id);
         }
     };
 
diff --git a/src/Value/value.hpp b/src/Value/value.hpp
index be55814..5e50bec 100644
--- a/src/Value/value.hpp
+++ b/src/Value/value.hpp
@@ -461,7 +461,7 @@ namespace Fig
             if (is<InterfaceType>())
             {
                 return FString(std::format(
-                    "<InterfaceType '{}' at {:p}",
+                    "<InterfaceType '{}' at {:p}>",
                     as<InterfaceType>().type.toString().toBasicString(),
                     static_cast<const void *>(&as<InterfaceType>())));
             }