diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 08271374..86ba92ec 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -564,6 +564,7 @@ PHP:
   - .php3
   - .php4
   - .php5
+  - .ctp
 
 Parrot Internal Representation:
   lexer: Text only