diff --git a/ServerUI.gd b/ServerUI.gd
index 28e18d3..623dfe8 100644
--- a/ServerUI.gd
+++ b/ServerUI.gd
@@ -133,6 +133,11 @@ func _on_FileTree_item_selected() -> void:
 func _on_FileTree_item_rmb_selected(position: Vector2) -> void:
 	current_tree_selection = file_tree.get_selected()
 	file_tree_context_menu.rect_position = position + file_tree.rect_global_position
+	file_tree_context_menu.popup()
+
+	if is_server_running:
+		return # the file tree can't be edited while the server is running, so disable moving items as well
+
 	if (current_tree_selection.get_metadata(0)["id"] as int) == 0:
 		file_tree_context_menu.set_item_disabled(ContextMenuOptions.MOVE_UP, true)
 	else:
@@ -144,8 +149,6 @@ func _on_FileTree_item_rmb_selected(position: Vector2) -> void:
 		file_tree_context_menu.set_item_disabled(ContextMenuOptions.MOVE_DOWN, false)
 
 
-	file_tree_context_menu.popup()
-
 
 func _on_OpenServerFolderButton_pressed() -> void:
 	server_folder_dialog.popup()
@@ -159,6 +162,7 @@ func set_server_running(running: bool) -> void:
 	document_title_lineedit.editable = !running
 	document_input_textedit.readonly = running
 	_set_file_tree_disabled(running)
+	_set_context_menu_disabled(running)
 
 	server_status_label.text = SERVER_STATUS_TEXT[running]
 	start_server_button.text = START_BUTTON_SERVER_TEXT[running]
@@ -244,7 +248,8 @@ func _set_file_tree_disabled(disabled: bool) -> void:
 
 
 func _set_context_menu_disabled(disabled: bool) -> void:
-	pass
+	for i in file_tree_context_menu.get_item_count():
+		file_tree_context_menu.set_item_disabled(i, disabled)
 
 
 func _on_FileTreeContextMenu_id_pressed(id: int) -> void: