diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index fba61cd4..d90f6a39 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -553,7 +553,6 @@ DIGITAL Command Language:
   - dcl
   extensions:
   - .com
-  - .dcl
 
 DM:
   type: programming