diff --git a/src/libslic3r/Technologies.hpp b/src/libslic3r/Technologies.hpp
index 635fc499436..2ce7079fe1c 100644
--- a/src/libslic3r/Technologies.hpp
+++ b/src/libslic3r/Technologies.hpp
@@ -84,6 +84,8 @@
 #define ENABLE_NEW_CAMERA_MOVEMENTS (1 && ENABLE_2_5_0_ALPHA1)
 // Enable modified rectangle selection
 #define ENABLE_NEW_RECTANGLE_SELECTION (1 && ENABLE_2_5_0_ALPHA1)
+// Enable alternative version of file_wildcards()
+#define ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR (1 && ENABLE_2_5_0_ALPHA1)
 
 
 #endif // _prusaslicer_technologies_h_
diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 87913fb8127..ee919942524 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -499,6 +499,44 @@ static const FileWildcards file_wildcards_by_type[FT_SIZE] = {
     /* FT_SL1 */     { "Masked SLA files"sv, { ".sl1"sv, ".sl1s"sv, ".pwmx"sv } },
 };
 
+#if ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
+wxString file_wildcards(FileType file_type)
+{
+    const FileWildcards& data = file_wildcards_by_type[file_type];
+    std::string title;
+    std::string mask;
+
+    // Generate cumulative first item
+    for (const std::string_view& ext : data.file_extensions) {
+        if (title.empty()) {
+            title = "*";
+            title += ext;
+            mask = title;
+        }
+        else {
+            title += ", *";
+            title += ext;
+            mask += ";*";
+            mask += ext;
+        }
+        mask += ";*";
+        mask += boost::to_upper_copy(std::string(ext));
+    }
+
+    wxString ret = GUI::format_wxstr("%s (%s)|%s", data.title, title, mask);
+
+    // Adds an item for each of the extensions
+    if (data.file_extensions.size() > 1) {
+        for (const std::string_view& ext : data.file_extensions) {
+            title = "*";
+            title += ext;
+            ret += GUI::format_wxstr("|%s (%s)|%s", data.title, title, title);
+        }
+    }
+
+    return ret;
+}
+#else
 // This function produces a Win32 file dialog file template mask to be consumed by wxWidgets on all platforms.
 // The function accepts a custom extension parameter. If the parameter is provided, the custom extension
 // will be added as a fist to the list. This is important for a "file save" dialog on OSX, which strips
@@ -551,8 +589,10 @@ wxString file_wildcards(FileType file_type, const std::string &custom_extension)
             mask += ";*";
             mask += boost::to_upper_copy(std::string(ext));
         }
+
     return GUI::format_wxstr("%s (%s)|%s", data.title, title, mask);
 }
+#endif // ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
 
 static std::string libslic3r_translate_callback(const char *s) { return wxGetTranslation(wxString(s, wxConvUTF8)).utf8_str().data(); }
 
diff --git a/src/slic3r/GUI/GUI_App.hpp b/src/slic3r/GUI/GUI_App.hpp
index 8b4177a8d7d..f93728d2e37 100644
--- a/src/slic3r/GUI/GUI_App.hpp
+++ b/src/slic3r/GUI/GUI_App.hpp
@@ -71,7 +71,11 @@ enum FileType
     FT_SIZE,
 };
 
+#if ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
+extern wxString file_wildcards(FileType file_type);
+#else
 extern wxString file_wildcards(FileType file_type, const std::string &custom_extension = std::string{});
+#endif // ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
 
 enum ConfigMenuIDs {
     ConfigMenuWizard,
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index fc8ba23c513..daee3b05332 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -5919,11 +5919,17 @@ void Plater::export_gcode(bool prefer_removable)
 
     fs::path output_path;
     {
-    	std::string ext = default_output_file.extension().string();
+#if !ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
+        std::string ext = default_output_file.extension().string();
+#endif // !ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
         wxFileDialog dlg(this, (printer_technology() == ptFFF) ? _L("Save G-code file as:") : _L("Save SL1 / SL1S file as:"),
             start_dir,
             from_path(default_output_file.filename()),
+#if ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
+            GUI::file_wildcards((printer_technology() == ptFFF) ? FT_GCODE : FT_SL1),
+#else
             GUI::file_wildcards((printer_technology() == ptFFF) ? FT_GCODE : FT_SL1, ext),
+#endif // ENABLE_ALTERNATIVE_FILE_WILDCARDS_GENERATOR
             wxFD_SAVE | wxFD_OVERWRITE_PROMPT
         );
         if (dlg.ShowModal() == wxID_OK) {