diff --git a/rtgui/bayerprocess.cc b/rtgui/bayerprocess.cc
index 3648c8f89..7491d3896 100644
--- a/rtgui/bayerprocess.cc
+++ b/rtgui/bayerprocess.cc
@@ -759,6 +759,7 @@ void BayerProcess::autoContrastChanged (double autoContrast)
         me->disableListener();
         me->dualDemosaicContrast->setValue(d->autoContrast);
         me->enableListener();
+        delete d;
         return FALSE;
     };
 
diff --git a/rtgui/xtransprocess.cc b/rtgui/xtransprocess.cc
index 1707b84ff..1bb5303b0 100644
--- a/rtgui/xtransprocess.cc
+++ b/rtgui/xtransprocess.cc
@@ -261,6 +261,7 @@ void XTransProcess::autoContrastChanged (double autoContrast)
         me->disableListener();
         me->dualDemosaicContrast->setValue(d->autoContrast);
         me->enableListener();
+        delete d;
         return FALSE;
     };