diff --git a/rtengine/improccoordinator.cc b/rtengine/improccoordinator.cc
index f2b0f65b5..68456d6fe 100644
--- a/rtengine/improccoordinator.cc
+++ b/rtengine/improccoordinator.cc
@@ -601,7 +601,7 @@ void ImProcCoordinator::saveInputICCReference (const Glib::ustring& fname) {
     imgsrc->preprocess( ppar.raw );
     imgsrc->demosaic(ppar.raw );
     imgsrc->getImage (imgsrc->getWB(), 0, im, pp, ppar.hlrecovery, ppar.icm, ppar.raw);
-    im->saveJPEG (fname, 85);
+    im->saveTIFF (fname,16,true);
     mProcessing.unlock ();
 }
 
diff --git a/rtgui/icmpanel.cc b/rtgui/icmpanel.cc
index 82b2f486e..047c24989 100644
--- a/rtgui/icmpanel.cc
+++ b/rtgui/icmpanel.cc
@@ -279,10 +279,10 @@ void ICMPanel::saveReferencePressed () {
     dialog.add_button(Gtk::StockID("gtk-cancel"), Gtk::RESPONSE_CANCEL);
     dialog.add_button(Gtk::StockID("gtk-save"), Gtk::RESPONSE_OK);
 
-    Gtk::FileFilter filter_jpg;
-    filter_jpg.set_name(M("SAVEDLG_JPGFILTER"));
-    filter_jpg.add_pattern("*.jpg");
-    dialog.add_filter(filter_jpg);
+    Gtk::FileFilter filter_tif;
+    filter_tif.set_name(M("SAVEDLG_TIFFFILTER"));
+    filter_tif.add_pattern("*.tif");
+    dialog.add_filter(filter_tif);
 
     dialog.set_do_overwrite_confirmation (true);