diff --git a/kdesu/src/suprocess.cpp b/kdesu/src/suprocess.cpp

index 0e653f1..3413bfd 100644

--- a/kdesu/src/suprocess.cpp

+++ b/kdesu/src/suprocess.cpp

@@ -103,6 +103,9 @@ int SuProcess::exec(const char *password, int check)

     }

     QList<QByteArray> args;

+    if (d->superUserCommand == QLatin1String("su")) {

+        args += "-l"; // krazy:exclude=doublequote_chars (QList, not QString)

+    }

     if (d->superUserCommand == QLatin1String("sudo")) {

         args += "-u";

     }

@@ -122,7 +125,6 @@ int SuProcess::exec(const char *password, int check)

     const QString defaultPath = QStringLiteral(CMAKE_INSTALL_FULL_LIBEXECDIR_KF5) + QStringLiteral("/kdesu_stub");

     const QString kdesuStubPath = group.readEntry("kdesu_stub_path", defaultPath);

     args += kdesuStubPath.toLocal8Bit();

-    args += "-"; // krazy:exclude=doublequote_chars (QList, not QString)

     const QString commandString = group.readEntry("command", QStandardPaths::findExecutable(d->superUserCommand));

     const QByteArray command = commandString.toLocal8Bit();