--- a/kcmkgamma/kgamma.cpp

+++ b/kcmkgamma/kgamma.cpp

@@ -361,7 +361,7 @@ void KGamma::save()

                     Arguments += rgamma[assign[i]] + QLatin1Char(' ') + ggamma[assign[i]] + QLatin1Char(' ') + bgamma[assign[i]] + QLatin1Char(' ');

                 }

                 rootProcess->setProgram(QStandardPaths::findExecutable(QStringLiteral("kdesu")));

-                rootProcess->setArguments(Arguments.split(QLatin1Char(' ')));

+                rootProcess->setArguments(Arguments.split(QLatin1Char(' '), Qt::SkipEmptyParts));

                 rootProcess->start();

             }

         }