diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index c74f6a94..020cdccd 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -784,6 +784,8 @@ PHP:
   - .php4
   - .php5
   - .phpt
+  filenames:
+  - Phakefile
 
 Parrot:
   type: programming