diff --git a/book/src/package-managers.md b/book/src/package-managers.md
index a08baccd1..478fe6cb3 100644
--- a/book/src/package-managers.md
+++ b/book/src/package-managers.md
@@ -121,7 +121,7 @@ brew install helix
 ### MacPorts
 
 ```sh
-port install helix
+sudo port install helix
 ```
 
 ## Windows