diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index d8fade7a..44734ea4 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -626,7 +626,7 @@ Diff:
   aliases:
   - udiff
 
-Docker File:
+Dockerfile:
   type: data
   tm_scope: source.dockerfile
   extensions: