diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 120cee58..e74341e6 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1609,6 +1609,8 @@ Perl:
   - .pm
   - .pod
   - .psgi
+  - .cgi
+  - .t
   interpreters:
   - perl