diff --git a/repertory/librepertory/include/types/repertory.hpp b/repertory/librepertory/include/types/repertory.hpp
index 2e0ab218..676e0d69 100644
--- a/repertory/librepertory/include/types/repertory.hpp
+++ b/repertory/librepertory/include/types/repertory.hpp
@@ -619,6 +619,16 @@ template <typename data_t> struct adl_serializer<repertory::atomic<data_t>> {
   }
 };
 
+template <> struct adl_serializer<std::atomic<std::uint64_t>> {
+  static void to_json(json &data, const std::atomic<std::uint64_t> &value) {
+    data = value.load();
+  }
+
+  static void from_json(const json &data, std::atomic<std::uint64_t> &value) {
+    value.store(data.get<std::uint64_t>());
+  }
+};
+
 template <typename primitive_t>
 struct adl_serializer<std::atomic<primitive_t>> {
   static void to_json(json &data, const std::atomic<primitive_t> &value) {