diff --git a/switch_window.py b/switch_window.py
index fdb265f..4179fdb 100644
--- a/switch_window.py
+++ b/switch_window.py
@@ -33,7 +33,7 @@ def list_items(self):
                 elif view.name():
                     active_file_name = view.name()
 
-            project_file_name = window.project_file_name()
+            project_file_name = window.workspace_file_name()
             if project_file_name:
                 title = os.path.splitext(os.path.basename(project_file_name))[0]
                 kind = kind_project