diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index eed5d03834..6e582c7030 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -62,6 +62,7 @@ class Pathname
 
     return return_value
   end
+  protected :install_p
 
   # Creates symlinks to sources in this folder.
   def install_symlink *sources
@@ -94,6 +95,7 @@ class Pathname
 
     return dst
   end
+  protected :install_symlink_p
 
   # we assume this pathname object is a file obviously
   def write content