diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index de6aad48..f777ea2d 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -552,6 +552,7 @@ PHP:
   - .php3
   - .php4
   - .php5
+  - .ctp
 
 Parrot Internal Representation:
   lexer: Text only