diff --git a/Pomelo.wiki/Installing-With-Xcode-(Without-Paid-Dev-Acc).md b/Pomelo.wiki/Installing-With-Xcode-(Without-Paid-Dev-Acc).md
index 6785602..6fe94d9 100644
--- a/Pomelo.wiki/Installing-With-Xcode-(Without-Paid-Dev-Acc).md
+++ b/Pomelo.wiki/Installing-With-Xcode-(Without-Paid-Dev-Acc).md
@@ -26,7 +26,7 @@ $ wget -O boost1.84.zip https://archives.boost.io/release/1.84.0/source/boost_1_
 
 $ unzip boost1.84.zip
 
-$ cd boost-1.84.0
+$ cd boost_1_84_0
 
 $ sh bootstrap.sh --prefix=/usr/local