diff --git a/src/frontends/qt/qt_helpers.cpp b/src/frontends/qt/qt_helpers.cpp
index 211d286dda..118903214c 100644
--- a/src/frontends/qt/qt_helpers.cpp
+++ b/src/frontends/qt/qt_helpers.cpp
@@ -381,11 +381,11 @@ QStringList texFileList(QString const & filename)
 			set.insert(qfile);
 	}
 
-        // remove duplicates
+	// remove duplicates
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
-        return QList<QString>(set.begin(), set.end());
+	return QList<QString>(set.begin(), set.end());
 #else
-        return QList<QString>::fromSet(set);
+	return QList<QString>::fromSet(set);
 #endif
 }