diff --git a/libsaria/collection/library.py b/libsaria/collection/library.py
index 113e0321..9526ff80 100644
--- a/libsaria/collection/library.py
+++ b/libsaria/collection/library.py
@@ -75,14 +75,7 @@ def walk():
 		yield tag[3]
 
 def file_to_id(file):
-	global fs_tree
-	stripped = file.strip(libsaria.path.sep)
-	split    = stripped.split(libsaria.path.sep)
-
-	res = fs_tree.walk_path(split)
-	if res == False:
-		return None
-	return res[0]
+	return os.stat(file).st_ino
 
 def get_attrs(id, *attrs):
 	res = []