diff --git a/repertory/librepertory/src/platform/win32_platform.cpp b/repertory/librepertory/src/platform/win32_platform.cpp
index 9a4a98b8..270b7437 100644
--- a/repertory/librepertory/src/platform/win32_platform.cpp
+++ b/repertory/librepertory/src/platform/win32_platform.cpp
@@ -176,7 +176,7 @@ auto lock_data::set_mount_state(bool active, std::string_view mount_location,
 
     if (::RegCreateKeyExA(
             HKEY_CURRENT_USER,
-            fmt::format(R"(SOFTWARE\{}\Lock\{})", REPERTORY_DATA_NAME, dir_id),
+            fmt::format(R"(SOFTWARE\{}\Lock\{})", REPERTORY_DATA_NAME, dir_id_),
             0, nullptr, 0, KEY_ALL_ACCESS, nullptr, &key,
             nullptr) != ERROR_SUCCESS) {
       return false;