diff --git a/Library/Homebrew/formula_cellar_checks.rb b/Library/Homebrew/formula_cellar_checks.rb
index 337cd50b7e..918301ac16 100644
--- a/Library/Homebrew/formula_cellar_checks.rb
+++ b/Library/Homebrew/formula_cellar_checks.rb
@@ -104,6 +104,7 @@ module FormulaCellarChecks
   end
 
   def check_shadowed_headers
+    return if f.name == "libtool" || f.name == "subversion"
     return if f.keg_only? || !f.include.directory?
 
     files  = relative_glob(f.include, "**/*.h")