diff --git a/plugin/filetypes.lua b/plugin/filetypes.lua
index 7759c1f5c..4c850ca9b 100644
--- a/plugin/filetypes.lua
+++ b/plugin/filetypes.lua
@@ -44,7 +44,7 @@ local filetypes = {
   slang = { 'shaderslang' },
   sqp = { 'mysqp' },
   ssh_config = { 'sshconfig' },
-  starlark = { 'bzl' },
+  starlark = { 'bzl', 'tiltfile' },
   surface = { 'sface' },
   systemverilog = { 'verilog' },
   t32 = { 'trace32' },