diff --git a/xs/src/libslic3r/PrintObject.cpp b/xs/src/libslic3r/PrintObject.cpp
index 0b9e8a7db..e9d5e3bf0 100644
--- a/xs/src/libslic3r/PrintObject.cpp
+++ b/xs/src/libslic3r/PrintObject.cpp
@@ -1364,7 +1364,7 @@ PrintObject::generate_support_material()
     auto* print { this->_print };
     const auto& config { this->config };
     //prereqs 
-    this->_slice();
+    this->slice();
     if (this->state.is_done(posSupportMaterial)) { return; }
 
     this->state.set_started(posSupportMaterial);