diff --git a/apps/mylib/tools.py b/apps/mylib/tools.py
index 90736c3..50a1545 100644
--- a/apps/mylib/tools.py
+++ b/apps/mylib/tools.py
@@ -211,7 +211,7 @@
 
     def set_multimaps(self, dirpath: Path, wp_path: Path):
         all_wp_yaml = read_file(wp_path)
-        if (not "waypoints" in wp_yaml) or (not "finish_pose" in wp_yaml):
+        if (not "waypoints" in all_wp_yaml) or (not "finish_pose" in all_wp_yaml):
             messagebox.showerror(title="Format error", message="Selected waypoints file is unexpected format.")
             return False
         map_idx = 0