diff --git a/src/Type.cc b/src/Type.cc
index 2e8bbdd4bf..9ae12473ad 100644
--- a/src/Type.cc
+++ b/src/Type.cc
@@ -1367,6 +1367,14 @@ void EnumType::AddNameInternal(const string& module_name, const char* name,
 	names[fullname] = val;
 	}
 
+void EnumType::AddNameInternal(const string& full_name, bro_int_t val)
+	{
+	names[full_name] = val;
+
+	if ( vals.find(val) == vals.end() )
+		vals[val] = make_intrusive<EnumVal>(IntrusivePtr{NewRef{}, this}, val);
+	}
+
 bro_int_t EnumType::Lookup(const string& module_name, const char* name) const
 	{
 	NameMap::const_iterator pos =
diff --git a/src/Type.h b/src/Type.h
index 6ea8a47fe3..e3c707d028 100644
--- a/src/Type.h
+++ b/src/Type.h
@@ -716,6 +716,8 @@ protected:
 	void AddNameInternal(const std::string& module_name,
 			const char* name, bro_int_t val, bool is_export);
 
+	void AddNameInternal(const std::string& full_name, bro_int_t val);
+
 	void CheckAndAddName(const std::string& module_name,
 	                     const char* name, bro_int_t val, bool is_export,
 	                     detail::Expr* deprecation = nullptr,