--- 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();
             }
         }