diff --git a/src/ProjectFileManager.cpp b/src/ProjectFileManager.cpp
index 8da7ac6b2..bbd63b758 100644
--- a/src/ProjectFileManager.cpp
+++ b/src/ProjectFileManager.cpp
@@ -1522,7 +1522,7 @@ void ProjectFileManager::OpenFile(const FilePath &fileNameArg, bool addtohistory
 
             // Vaughan, 2010-08-20: This was bogus, as all the actions in ProjectFSCK
             // that return FSCKstatus_CHANGED cannot be undone.
-            //    this->PushState(_("Project checker repaired file"), _("Project Repair"));
+            //    this->PushState(XO("Project checker repaired file"), XO("Project Repair"));
 
             if (status & FSCKstatus_SAVE_AUP)
                Save(), saved = true;
diff --git a/src/import/ImportQT.cpp b/src/import/ImportQT.cpp
index 0e75246a0..db286ba16 100644
--- a/src/import/ImportQT.cpp
+++ b/src/import/ImportQT.cpp
@@ -20,7 +20,7 @@
 #include "../widgets/AudacityMessageBox.h"
 #include "../widgets/ProgressDialog.h"
 
-#define DESC _("QuickTime files")
+#define DESC XO("QuickTime files")
 
 static const auto exts = {
    wxT("aif"),
@@ -119,9 +119,9 @@ class QTImportPlugin final : public ImportPlugin
       mInitialized = false;
    }
 
-   wxString GetPluginStringID() { return wxT("quicktime"); }
+   wxString GetPluginStringID() override { return wxT("quicktime"); }
 
-   TranslatableString GetPluginFormatDescription();
+   TranslatableString GetPluginFormatDescription() override;
    std::unique_ptr<ImportFileHandle> Open(const wxString & Filename) override;
 
    unsigned SequenceNumber() const override;
diff --git a/src/menus/EditMenus.cpp b/src/menus/EditMenus.cpp
index 69ae6d1b6..a9e9719d5 100644
--- a/src/menus/EditMenus.cpp
+++ b/src/menus/EditMenus.cpp
@@ -832,7 +832,7 @@ void OnSplit(const CommandContext &context)
       n = nIter.Next();
    }
 
-   PushState(_("Split"), _("Split"));
+   PushState(XO("Split"), XO("Split"));
    */
 #endif
 }
diff --git a/src/menus/TrackMenus.cpp b/src/menus/TrackMenus.cpp
index 842ccacd5..0377f12bf 100644
--- a/src/menus/TrackMenus.cpp
+++ b/src/menus/TrackMenus.cpp
@@ -381,8 +381,8 @@ class ASAProgress final : public SAProgress {
                     work[1], mFrames[1], is_audio[1]);
             wxFprintf(mTimeFile, "work2 = %g, work3 = %g\n", work2, work3);
          #endif
-         mProgress.create(_("Synchronize MIDI with Audio"),
-                               _("Synchronizing MIDI and Audio Tracks"));
+         mProgress.create(XO("Synchronize MIDI with Audio"),
+                               XO("Synchronizing MIDI and Audio Tracks"));
       } else if (i < 3) {
          wxFprintf(mTimeFile,
                 "Phase %d took %d ms for %g frames, coefficient = %g s/frame\n",
@@ -933,7 +933,7 @@ void OnScoreAlign(const CommandContext &context)
 
    // We're going to do it.
    //pushing the state before the change is wrong (I think)
-   //PushState(_("Sync MIDI with Audio"), _("Sync MIDI with Audio"));
+   //PushState(XO("Sync MIDI with Audio"), XO("Sync MIDI with Audio"));
    // Make a copy of the note track in case alignment is canceled or fails
    auto holder = nt->Duplicate();
    auto alignedNoteTrack = static_cast<NoteTrack*>(holder.get());
diff --git a/src/tracks/playabletrack/wavetrack/ui/WaveTrackControls.cpp b/src/tracks/playabletrack/wavetrack/ui/WaveTrackControls.cpp
index 8e0001035..36a879c03 100644
--- a/src/tracks/playabletrack/wavetrack/ui/WaveTrackControls.cpp
+++ b/src/tracks/playabletrack/wavetrack/ui/WaveTrackControls.cpp
@@ -845,20 +845,20 @@ void WaveTrackMenuTable::OnChannelChange(wxCommandEvent & event)
    WaveTrack *const pTrack = static_cast<WaveTrack*>(mpData->pTrack);
    wxASSERT(pTrack);
    Track::ChannelType channel;
-   wxString channelmsg;
+   TranslatableString channelmsg;
    switch (id) {
    default:
    case OnChannelMonoID:
       channel = Track::MonoChannel;
-      channelmsg = _("Mono");
+      channelmsg = XO("Mono");
       break;
    case OnChannelLeftID:
       channel = Track::LeftChannel;
-      channelmsg = _("Left Channel");
+      channelmsg = XO("Left Channel");
       break;
    case OnChannelRightID:
       channel = Track::RightChannel;
-      channelmsg = _("Right Channel");
+      channelmsg = XO("Right Channel");
       break;
    }
    pTrack->SetChannel(channel);