diff --git a/xs/src/libslic3r/Print.hpp b/xs/src/libslic3r/Print.hpp
index 9c11ee085..a114ffb39 100644
--- a/xs/src/libslic3r/Print.hpp
+++ b/xs/src/libslic3r/Print.hpp
@@ -136,9 +136,11 @@ class PrintObject
     void delete_layer(int idx);
 
     SupportMaterial* _support_material();
-
+    
+#ifndef SLIC3RXS
     /// Initialize and generate support material.
     void generate_support_material();
+#endif // SLIC3RXS
 
     Flow _support_material_flow(FlowRole role = frSupportMaterial);
     size_t support_layer_count() const;
diff --git a/xs/src/libslic3r/PrintObject.cpp b/xs/src/libslic3r/PrintObject.cpp
index ec6e192fe..227c32c49 100644
--- a/xs/src/libslic3r/PrintObject.cpp
+++ b/xs/src/libslic3r/PrintObject.cpp
@@ -1146,7 +1146,7 @@ PrintObject::_support_material_flow(FlowRole role)
 
     return support_flow;
 }
-
+#ifndef SLIC3RXS
 void
 PrintObject::generate_support_material() 
 {
@@ -1181,4 +1181,5 @@ PrintObject::generate_support_material()
         print->status_cb(85, stats.str().c_str());
 
 }
+#endif // SLIC3RXS
 }