diff --git a/tools/find_duplicates.py b/tools/find_duplicates.py
index d16e61357f..e5eba1c33b 100755
--- a/tools/find_duplicates.py
+++ b/tools/find_duplicates.py
@@ -16,7 +16,7 @@ build_dir = root_dir + "build/"
 
 
 def read_rom():
-    with open("ver/current/baserom.z64", "rb") as f:
+    with open(root_dir + "ver/current/baserom.z64", "rb") as f:
         return f.read()