diff --git a/krita/plugins/extensions/colorspaceconversion/colorspaceconversion.cc b/krita/plugins/extensions/colorspaceconversion/colorspaceconversion.cc
index bb4dadeefdcbe8fc0c64f13398ffb45a43d9f58e..1a5088774ae20965c62d300981e9e2434f2bee81 100644
--- a/krita/plugins/extensions/colorspaceconversion/colorspaceconversion.cc
+++ b/krita/plugins/extensions/colorspaceconversion/colorspaceconversion.cc
@@ -93,6 +93,8 @@ void ColorSpaceConversion::slotImageColorSpaceConversion()
 
 
     DlgColorSpaceConversion * dlgColorSpaceConversion = new DlgColorSpaceConversion(m_view, "ColorSpaceConversion");
+    bool allowLCMSOptimization = KisConfig().allowLCMSOptimization();
+    dlgColorSpaceConversion->m_page->chkAllowLCMSOptimization->setChecked(allowLCMSOptimization);
     Q_CHECK_PTR(dlgColorSpaceConversion);
 
     dlgColorSpaceConversion->setCaption(i18n("Convert All Layers From ") + image->colorSpace()->name());