diff --git a/src/libslic3r/Technologies.hpp b/src/libslic3r/Technologies.hpp
index 15cbd3827..5d0a7592c 100644
--- a/src/libslic3r/Technologies.hpp
+++ b/src/libslic3r/Technologies.hpp
@@ -39,6 +39,7 @@
 
 // Enable thumbnail generator
 #define ENABLE_THUMBNAIL_GENERATOR (1 && ENABLE_2_2_0_ALPHA1)
+#define ENABLE_THUMBNAIL_GENERATOR_DEBUG (0 && ENABLE_THUMBNAIL_GENERATOR)
 #define ENABLE_THUMBNAIL_GENERATOR_PNG_TO_GCODE (1 && ENABLE_THUMBNAIL_GENERATOR)
 
 #endif // _technologies_h_
diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 07deff54e..0b24e2215 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -1087,7 +1087,7 @@ bool GUI_App::run_wizard(ConfigWizard::RunReason reason, ConfigWizard::StartPage
     return res;
 }
 
-#if ENABLE_THUMBNAIL_GENERATOR
+#if ENABLE_THUMBNAIL_GENERATOR_DEBUG
 void GUI_App::gcode_thumbnails_debug()
 {
     const std::string BEGIN_MASK = "; thumbnail begin";
@@ -1196,7 +1196,7 @@ void GUI_App::gcode_thumbnails_debug()
         in_file.close();
     }
 }
-#endif // ENABLE_THUMBNAIL_GENERATOR
+#endif // ENABLE_THUMBNAIL_GENERATOR_DEBUG
 
 void GUI_App::window_pos_save(wxTopLevelWindow* window, const std::string &name)
 {
diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index 56eda2c0d..b76110a87 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -682,11 +682,11 @@ void MainFrame::init_menubar()
         helpMenu->AppendSeparator();
         append_menu_item(helpMenu, wxID_ANY, _(L("Keyboard Shortcuts")) + sep + "&?", _(L("Show the list of the keyboard shortcuts")),
             [this](wxCommandEvent&) { wxGetApp().keyboard_shortcuts(); });
-#if ENABLE_THUMBNAIL_GENERATOR
+#if ENABLE_THUMBNAIL_GENERATOR_DEBUG
         helpMenu->AppendSeparator();
         append_menu_item(helpMenu, wxID_ANY, _(L("DEBUG gcode thumbnails")), _(L("DEBUG ONLY - read the selected gcode file and generates png for the contained thumbnails")),
             [this](wxCommandEvent&) { wxGetApp().gcode_thumbnails_debug(); });
-#endif // ENABLE_THUMBNAIL_GENERATOR
+#endif // ENABLE_THUMBNAIL_GENERATOR_DEBUG
     }
 
     // menubar