diff --git a/src/prefs/DirectoriesPrefs.cpp b/src/prefs/DirectoriesPrefs.cpp
index 36b7e594b..42235f15d 100644
--- a/src/prefs/DirectoriesPrefs.cpp
+++ b/src/prefs/DirectoriesPrefs.cpp
@@ -224,7 +224,7 @@ bool DirectoriesPrefs::Validate()
    if (tempDir != oldDir) {
       wxMessageBox(
          _("Changes to temporary directory will not take effect until Audacity is restarted"),
-         wxT("Temp Directory Update"),
+         _("Temp Directory Update"),
          wxOK | wxCENTRE | wxICON_INFORMATION);
    }