diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index d69b072a..4b0049b1 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -2615,6 +2615,8 @@ SQL:
   - .tab
   - .udf
   - .viw
+  - .cql
+  - .ddl
 
 STON:
   type: data