diff --git a/wizard-work/beam/tree_root.py b/wizard-work/beam/tree_root.py
index 8d7e604..ca8e075 100644
--- a/wizard-work/beam/tree_root.py
+++ b/wizard-work/beam/tree_root.py
@@ -5,7 +5,7 @@ import os
 
 
 def find_tree_root(start, marker="WORK-QUEUE.md"):
-    cur = os.path.abspath(start)
+    cur = os.path.realpath(start)
     if os.path.isfile(cur):
         cur = os.path.dirname(cur)
     while True: