diff --git a/WebKitBrowser/WebKitImplementation.cpp b/WebKitBrowser/WebKitImplementation.cpp
index 63603a86..8f88a312 100644
--- a/WebKitBrowser/WebKitImplementation.cpp
+++ b/WebKitBrowser/WebKitImplementation.cpp
@@ -2890,7 +2890,8 @@ static GSourceFuncs _handlerIntervention =
 
                 gchar* indexedDBPath = nullptr;
                 if (_config.IndexedDBPath.IsSet() && !_config.IndexedDBPath.Value().empty()) {
-                    indexedDBPath = g_build_filename(_service->Substitute(_config.IndexedDBPath.Value()), "wpe", "databases", "indexeddb", nullptr);
+                    _config.IndexedDBPath = _service->Substitute(_config.IndexedDBPath.Value());
+                    indexedDBPath = g_build_filename(_config.IndexedDBPath.Value().c_str(), "wpe", "databases", "indexeddb", nullptr);
                 } else {
                     indexedDBPath = g_build_filename(g_get_user_cache_dir(), "wpe", "databases", "indexeddb", nullptr);
                 }