diff --git a/repertory/repertory_test/src/ring_buffer_open_file_test.cpp b/repertory/repertory_test/src/ring_buffer_open_file_test.cpp
index fed0aa11..f47fc39f 100644
--- a/repertory/repertory_test/src/ring_buffer_open_file_test.cpp
+++ b/repertory/repertory_test/src/ring_buffer_open_file_test.cpp
@@ -31,9 +31,11 @@
 namespace {
 constexpr const std::size_t test_chunk_size{1024U};
 
-std::string ring_buffer_dir = repertory::utils::path::combine(
-    repertory::test::get_test_output_dir(),
-    {"file_manager_ring_buffer_open_file_test"});
+const auto ring_buffer_dir{
+    repertory::utils::path::combine(
+        repertory::test::get_test_output_dir(),
+        {"file_manager_ring_buffer_open_file_test"}),
+};
 } // namespace
 
 namespace repertory {