diff --git a/Directories-and-Files.md b/Directories-and-Files.md
index d8eda34..d53dccd 100644
--- a/Directories-and-Files.md
+++ b/Directories-and-Files.md
@@ -107,7 +107,7 @@ Although one "weed filer" can only sits in one machine, you can start multiple "
 
 Filer is designed to be linearly scalable, and only limited by the underlying meta data storage.
 
-### Filer Complexity
+### Filer Work Loads
 
 Filer has two use cases.