path.cat --> join
diff --git a/Lib/dircache.py b/Lib/dircache.py
index b40f76e..1eebbbc 100644
--- a/Lib/dircache.py
+++ b/Lib/dircache.py
@@ -32,5 +32,5 @@
 
 def annotate(head, list): # Add '/' suffixes to directories
 	for i in range(len(list)):
-		if path.isdir(path.cat(head, list[i])):
+		if path.isdir(path.join(head, list[i])):
 			list[i] = list[i] + '/'