diff --git a/src/slic3r/GUI/Gizmos/GLGizmoHollow.cpp b/src/slic3r/GUI/Gizmos/GLGizmoHollow.cpp
index a89d8f9e5..4a3df4181 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoHollow.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoHollow.cpp
@@ -706,9 +706,9 @@ void GLGizmoHollow::on_render_input_window(float x, float y, float bottom_limit)
     double closing_d_max = opts[2].second->max;
     ConfigOptionMode closing_d_mode = opts[2].second->mode;
 
-    m_desc["offset"] = _(opts[0].second->label).ToUTF8() + wxString(":");
-    m_desc["quality"] = _(opts[1].second->label).ToUTF8() + wxString(":");
-    m_desc["closing_distance"] = _(opts[2].second->label).ToUTF8() + wxString(":");
+    m_desc["offset"] = _(opts[0].second->label) + ":";
+    m_desc["quality"] = _(opts[1].second->label) + ":";
+    m_desc["closing_distance"] = _(opts[2].second->label) + ":";
 
 
 RENDER_AGAIN: