diff --git a/src/PrusaSlicer.cpp b/src/PrusaSlicer.cpp
index a02876484..42660641f 100644
--- a/src/PrusaSlicer.cpp
+++ b/src/PrusaSlicer.cpp
@@ -480,7 +480,10 @@ int CLI::run(int argc, char **argv)
                 if (! m_config.opt_bool("dont_arrange")) {
                     ArrangeParams arrange_cfg;
                     arrange_cfg.min_obj_distance = scaled(PrintConfig::min_object_distance(&m_print_config)) * 2;
-                    arrange_cfg.min_obj_distance += scaled(m_print_config.opt_float("duplicate_distance"));
+                    if(m_print_config.option("duplicate_distance") != nullptr)
+                        arrange_cfg.min_obj_distance += scaled(m_print_config.opt_float("duplicate_distance"));
+                    else
+                        arrange_cfg.min_obj_distance += 6;
                     if (dups > 1) {
                             try {
                             // if all input objects have defined position(s) apply duplication to the whole model