diff --git a/packages/xdg_directories/lib/xdg_directories.dart b/packages/xdg_directories/lib/xdg_directories.dart
index 857b72c1c1..08e8cb6d85 100644
--- a/packages/xdg_directories/lib/xdg_directories.dart
+++ b/packages/xdg_directories/lib/xdg_directories.dart
@@ -30,6 +30,7 @@ set xdgEnvironmentOverride(EnvironmentAccessor override) {
 /// replaces the real environment lookups with an override.
 ///
 /// Only available to tests.
+@visibleForTesting
 EnvironmentAccessor get xdgEnvironmentOverride => _xdgEnvironmentOverride;
 EnvironmentAccessor _xdgEnvironmentOverride;
 EnvironmentAccessor _productionGetEnv =