diff --git a/rtgui/perspective.cc b/rtgui/perspective.cc
index e58cec211..7ce981548 100644
--- a/rtgui/perspective.cc
+++ b/rtgui/perspective.cc
@@ -209,7 +209,9 @@ PerspCorrection::PerspCorrection () : FoldableToolPanel(this, "perspective", M("
     camera_vbox->pack_start (*camera_roll);
     camera_vbox->pack_start (*camera_pitch);
     camera_vbox->pack_start (*camera_yaw);
+    camera_vbox->pack_start (*Gtk::manage (new  Gtk::HSeparator()));
     camera_vbox->pack_start (*control_lines_box);
+    camera_vbox->pack_start (*Gtk::manage (new  Gtk::HSeparator()));
     camera_vbox->pack_start (*auto_hbox);
     camera_frame->add(*camera_vbox);
     camera_based->pack_start(*camera_frame);