diff --git a/Library/Homebrew/cmd/audit.rb b/Library/Homebrew/cmd/audit.rb
index b61d58817a23968c9bbf660444c2f28047bed252..40060799aba6d9255fd2b4897020f17c2e921d1b 100644
--- a/Library/Homebrew/cmd/audit.rb
+++ b/Library/Homebrew/cmd/audit.rb
@@ -88,6 +88,7 @@ class FormulaAuditor
     pkg-config
     scons
     smake
+    swig
   ]
 
   def initialize f