diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 9baebd57cb..bb0b648e7f 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1661,7 +1661,7 @@ ECL:
 ECLiPSe:
   type: programming
   color: "#001d9d"
-  group: prolog
+  group: Prolog
   extensions:
   - ".ecl"
   tm_scope: source.prolog.eclipse