diff --git a/src/librssguard/core/feedsproxymodel.cpp b/src/librssguard/core/feedsproxymodel.cpp
index 919956a87..b71cadf5d 100644
--- a/src/librssguard/core/feedsproxymodel.cpp
+++ b/src/librssguard/core/feedsproxymodel.cpp
@@ -77,7 +77,11 @@ QModelIndexList FeedsProxyModel::match(const QModelIndex& start, int role, const
         QString item_text = item_value.toString();
 
         switch (match_type) {
+#if QT_VERSION >= 0x050F00 // Qt >= 5.15.0
           case Qt::MatchRegularExpression:
+#else
+          case Qt::MatchRegExp:
+#endif
             if (QRegularExpression(entered_text,
                                    QRegularExpression::PatternOption::CaseInsensitiveOption |
                                    QRegularExpression::PatternOption::UseUnicodePropertiesOption).match(item_text).hasMatch()) {
diff --git a/src/librssguard/core/messagesproxymodel.cpp b/src/librssguard/core/messagesproxymodel.cpp
index c3e81d277..326e37c98 100644
--- a/src/librssguard/core/messagesproxymodel.cpp
+++ b/src/librssguard/core/messagesproxymodel.cpp
@@ -113,7 +113,11 @@ QModelIndexList MessagesProxyModel::match(const QModelIndex& start, int role,
         QString item_text = item_value.toString();
 
         switch (match_type) {
+#if QT_VERSION >= 0x050F00 // Qt >= 5.15.0
           case Qt::MatchRegularExpression:
+#else
+          case Qt::MatchRegExp:
+#endif
             if (QRegularExpression(entered_text,
                                    QRegularExpression::PatternOption::CaseInsensitiveOption |
                                    QRegularExpression::PatternOption::UseUnicodePropertiesOption).match(item_text).hasMatch()) {