diff --git a/src/slic3r/GUI/GUI_App.hpp b/src/slic3r/GUI/GUI_App.hpp
index 5acab0c94..2af4a3a4a 100644
--- a/src/slic3r/GUI/GUI_App.hpp
+++ b/src/slic3r/GUI/GUI_App.hpp
@@ -55,7 +55,6 @@ enum FileType
     FT_OBJ,
     FT_AMF,
     FT_3MF,
-    FT_PRUSA,
     FT_GCODE,
     FT_MODEL,
     FT_PROJECT,