diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 948f8366..b51c600a 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1707,3 +1707,11 @@ wisp:
   ace_mode: clojure
   color: "#7582D1"
   primary_extension: .wisp
+
+xBase:
+  type: programming
+  lexer: Text only
+  color: "#3a4040"
+  primary_extension: .prg
+  extensions:
+  - .ch