diff --git a/languages.toml b/languages.toml
index b6ab1d0e..6f8bf114 100644
--- a/languages.toml
+++ b/languages.toml
@@ -535,6 +535,7 @@ scope = "source.make"
 file-types = ["Makefile", "makefile", "justfile", ".justfile"]
 roots =[]
 comment-token = "#"
+indent = { tab-width = 4, unit = "\t" }
 
 [[language]]
 name = "glsl"