diff --git a/README.md b/README.md
index 3b06c2c..a1df7c8 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@ A simple HTTP/1.1 server written in C.
       --enable-reload-config-on-change
       --enable-cache-dir=<DIR>
       --cache-entry-lifetime-seconds=<SECONDS>
+      --enable-static-dir=<DIR>
 
 ## Before Compiling