--- a/ksmserver/server.cpp
+++ b/ksmserver/server.cpp
@@ -788,7 +788,7 @@ void KSMServer::storeSession()
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     config->reparseConfiguration(); // config may have changed in the KControl module
     KConfigGroup generalGroup(config, "General");
-    excludeApps = generalGroup.readEntry("excludeApps").toLower().split(QRegularExpression(QStringLiteral("[,:]")), Qt::SkipEmptyParts);
+    excludeApps = generalGroup.readEntry("excludeApps", QString(QStringLiteral("krb5-ticket-watcher"))).toLower().split(QRegularExpression(QStringLiteral("[,:]")), Qt::SkipEmptyParts);
     KConfigGroup configSessionGroup(config, sessionGroup);
     int count = configSessionGroup.readEntry("count", 0);
     for (int i = 1; i <= count; i++) {