diff --git a/xs/xsp/Config.xsp b/xs/xsp/Config.xsp
index 8d6a971bc..435dda5a2 100644
--- a/xs/xsp/Config.xsp
+++ b/xs/xsp/Config.xsp
@@ -8,8 +8,7 @@
 %name{Slic3r::Config} class DynamicPrintConfig {
     DynamicPrintConfig();
     ~DynamicPrintConfig();
-    static DynamicPrintConfig* new_from_defaults();
-    DynamicPrintConfig* DynamicPrintConfig::new_from_defaults()
+    static DynamicPrintConfig* new_from_defaults()
         %code{% RETVAL = DynamicPrintConfig::new_from_defaults_keys(FullPrintConfig::defaults().keys()); %};
     static DynamicPrintConfig* new_from_defaults_keys(std::vector<std::string> keys);
     DynamicPrintConfig* clone() %code{% RETVAL = new DynamicPrintConfig(*THIS); %};