diff --git a/rtgui/dirpyrdenoise.cc b/rtgui/dirpyrdenoise.cc
index f2b780eba..89ebb9eab 100644
--- a/rtgui/dirpyrdenoise.cc
+++ b/rtgui/dirpyrdenoise.cc
@@ -574,6 +574,7 @@ void DirPyrDenoise::read (const ProcParams* pp, const ParamsEdited* pedited)
         passes->setEditedState     (pedited->dirpyrDenoise.passes ? Edited : UnEdited);
         set_inconsistent           (multiImage && !pedited->dirpyrDenoise.enabled);
         median->set_inconsistent   (!pedited->dirpyrDenoise.median);
+        lshape->setUnChanged       (!pedited->dirpyrDenoise.lcurve);
         ccshape->setUnChanged      (!pedited->dirpyrDenoise.cccurve);
 
         //      perform->set_inconsistent (!pedited->dirpyrDenoise.perform);