diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 4b98010517..3d58fa2ad3 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -7535,8 +7535,10 @@ std::set<std::string> printer_options_with_variant_1 = {
     "nozzle_volume",
     "retraction_length",
     "z_hop",
+    "travel_slope",
     "retract_lift_above",
     "retract_lift_below",
+    "retract_lift_enforce",
     "z_hop_types",
     "retraction_speed",
     "deretraction_speed",