diff --git a/lib/constants.js b/lib/constants.js
index 8a3f579..7d4b9ab 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -237,7 +237,8 @@ export const LANGUAGES = [
   },
   {
     name: 'Go',
-    mode: 'go'
+    mode: 'go',
+    mime: 'text/x-go'
   },
   {
     name: 'Groovy',