diff --git a/plugins/3MFWriter/__init__.py b/plugins/3MFWriter/__init__.py
index 1cecf4c3f8..980aefdf85 100644
--- a/plugins/3MFWriter/__init__.py
+++ b/plugins/3MFWriter/__init__.py
@@ -33,12 +33,6 @@ def getMetaData():
                     "mime_type": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml",
                     "mode": ThreeMFWriter.ThreeMFWriter.OutputMode.BinaryMode
                 },
-                {
-                    "extension": "3mf",
-                    "description": i18n_catalog.i18nc("@item:inlistbox", "Universal Cura Project"),
-                    "mime_type": "application/x-ucp",
-                    "mode": ThreeMFWriter.ThreeMFWriter.OutputMode.BinaryMode
-                }
             ]
         }
         metaData["workspace_writer"] = {
diff --git a/resources/qml/Menus/FileMenu.qml b/resources/qml/Menus/FileMenu.qml
index 5d252a32ba..9589a9da34 100644
--- a/resources/qml/Menus/FileMenu.qml
+++ b/resources/qml/Menus/FileMenu.qml
@@ -51,6 +51,7 @@ Cura.Menu
                 "filter_by_machine": false,
                 "file_type": "workspace",
                 "preferred_mimetypes": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml",
+                "limit_mimetypes":["application/vnd.ms-package.3dmanufacturing-3dmodel+xml"],
             };
             if (UM.Preferences.getValue("cura/dialog_on_project_save"))
             {
diff --git a/resources/qml/Menus/SaveProjectMenu.qml b/resources/qml/Menus/SaveProjectMenu.qml
index 2140d5e0ef..cd2b82daeb 100644
--- a/resources/qml/Menus/SaveProjectMenu.qml
+++ b/resources/qml/Menus/SaveProjectMenu.qml
@@ -28,7 +28,12 @@ Cura.Menu
                     // Prevent shortcut triggering if the item is disabled!
                     return
                 }
-                var args = { "filter_by_machine": false, "file_type": "workspace", "preferred_mimetypes": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml" };
+                var args = {
+                    "filter_by_machine": false,
+                    "file_type": "workspace",
+                    "preferred_mimetypes": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml",
+                    "limit_mimetypes": ["application/vnd.ms-package.3dmanufacturing-3dmodel+xml"],
+                };
                 if (UM.Preferences.getValue("cura/dialog_on_project_save"))
                 {
                     saveWorkspaceDialog.deviceId = model.id