--- a/textitem.cpp
+++ b/textitem.cpp
@@ -161,7 +161,7 @@ void TextItems::debug(const int page, const int ToleranceY,
         const QRect rect = item.toRect();
         out << item.text;
         if (!ComparingWords)
-            out << QString(" %1").arg(item.text.at(0).unicode(), 4, 16,
+            out << QString(" %1").arg(static_cast<int>(item.text.at(0).unicode()), 4, 16,
                                       QChar('0'));
         if (Yx) {
             const int y = normalizedY(static_cast<int>(item.rect.y()),