diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index ee9a8769..ac0a3e60 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -859,6 +859,8 @@ Objective-C:
 Objective-J:
   type: programming
   color: "#ff0c5a"
+  aliases:
+  - obj-j
   primary_extension: .j
   extensions:
   - .j