diff --git a/xs/src/libslic3r/PrintConfig.cpp b/xs/src/libslic3r/PrintConfig.cpp
index e0771d596..9be29718d 100644
--- a/xs/src/libslic3r/PrintConfig.cpp
+++ b/xs/src/libslic3r/PrintConfig.cpp
@@ -1383,7 +1383,6 @@ PrintConfigDef::PrintConfigDef()
 
     def = this->add("support_material_interface_speed", coFloatOrPercent);
     def->label = "↳ interface";
-    def->label = "Interface Speed";
     def->category = "Support material interface speed";
     def->gui_type = "f_enum_open";
     def->category = "Support material";