diff --git a/src/ui/util/conf/confutil.cpp b/src/ui/util/conf/confutil.cpp
index 0d123f76..f2257d93 100644
--- a/src/ui/util/conf/confutil.cpp
+++ b/src/ui/util/conf/confutil.cpp
@@ -79,14 +79,6 @@ void writeConfFlags(const FirewallConf &conf, PFORT_CONF_FLAGS confFlags)
 
 ConfUtil::ConfUtil(QObject *parent) : QObject(parent) { }
 
-void ConfUtil::setErrorMessage(const QString &errorMessage)
-{
-    if (m_errorMessage != errorMessage) {
-        m_errorMessage = errorMessage;
-        emit errorMessageChanged();
-    }
-}
-
 int ConfUtil::ruleMaxCount()
 {
     return FORT_CONF_RULE_MAX;
diff --git a/src/ui/util/conf/confutil.h b/src/ui/util/conf/confutil.h
index 98a8d66f..065f162d 100644
--- a/src/ui/util/conf/confutil.h
+++ b/src/ui/util/conf/confutil.h
@@ -24,7 +24,6 @@ using chars_arr_t = QVector<qint8>;
 class ConfUtil : public QObject
 {
     Q_OBJECT
-    Q_PROPERTY(QString errorMessage READ errorMessage NOTIFY errorMessageChanged)
 
 public:
     explicit ConfUtil(QObject *parent = nullptr);
@@ -36,9 +35,6 @@ public:
     static int ruleMaxCount();
     static int zoneMaxCount();
 
-signals:
-    void errorMessageChanged();
-
 public slots:
     int writeVersion(QByteArray &buf);
     int writeServices(
@@ -56,7 +52,7 @@ public slots:
     bool loadZone(const QByteArray &buf, IpRange &ipRange);
 
 private:
-    void setErrorMessage(const QString &errorMessage);
+    void setErrorMessage(const QString &errorMessage) { m_errorMessage = errorMessage; }
 
     bool parseAddressGroups(const QList<AddressGroup *> &addressGroups,
             addrranges_arr_t &addressRanges, longs_arr_t &addressGroupOffsets,