diff --git a/languages.toml b/languages.toml
index df84837d1..99382691e 100644
--- a/languages.toml
+++ b/languages.toml
@@ -1425,6 +1425,8 @@ comment-token = "#"
 indent = { tab-width = 2, unit = "  " }
 language-servers = [ "yaml-language-server", "ansible-language-server" ]
 injection-regex = "yml|yaml"
+formatter = { command = "yamlfmt", args = ['-'] }
+auto-format = true
 
 [[grammar]]
 name = "yaml"