diff --git a/src/corelib/tools/qlocale_unix.cpp b/src/corelib/tools/qlocale_unix.cpp
index a333be62fa..732c4445df 100644
--- a/src/corelib/tools/qlocale_unix.cpp
+++ b/src/corelib/tools/qlocale_unix.cpp
@@ -247,7 +247,7 @@ QVariant QSystemLocale::query(QueryType type, QVariant in) const
     case StringToAlternateQuotation:
         return lc_messages.quoteString(in.value<QStringRef>(), QLocale::AlternateQuotation);
     case ListToSeparatedString:
-        return lc_messages.createSeparatedList(in.value<QStringList>());
+        return lc_messages.createSeparatedList(in.toStringList());
     case LocaleChanged:
         Q_ASSERT(false);
     default: