diff --git a/src/dialogs/edittagdialog.cpp b/src/dialogs/edittagdialog.cpp
index cb3d308fa..b99b08b91 100644
--- a/src/dialogs/edittagdialog.cpp
+++ b/src/dialogs/edittagdialog.cpp
@@ -103,12 +103,13 @@
 using namespace Qt::Literals::StringLiterals;
 
 namespace {
-constexpr char kTagsDifferentHintText[] = QT_TR_NOOP("(different across multiple songs)");
-constexpr char kArtDifferentHintText[] = QT_TR_NOOP("Different art across multiple songs.");
 constexpr char kSettingsGroup[] = "EditTagDialog";
 constexpr int kSmallImageSize = 128;
 }  // namespace
 
+const char EditTagDialog::kTagsDifferentHintText[] = QT_TR_NOOP("(different across multiple songs)");
+const char EditTagDialog::kArtDifferentHintText[] = QT_TR_NOOP("Different art across multiple songs.");
+
 EditTagDialog::EditTagDialog(Application *app, QWidget *parent)
     : QDialog(parent),
       ui_(new Ui_EditTagDialog),
diff --git a/src/dialogs/edittagdialog.h b/src/dialogs/edittagdialog.h
index 731a1b65e..9a3a9434e 100644
--- a/src/dialogs/edittagdialog.h
+++ b/src/dialogs/edittagdialog.h
@@ -175,6 +175,9 @@ class EditTagDialog : public QDialog {
   static void SetDate(QLabel *label, const uint time);
 
  private:
+  static const char kTagsDifferentHintText[];
+  static const char kArtDifferentHintText[];
+
   Ui_EditTagDialog *ui_;
 
   Application *app_;