diff --git a/.editorconfig b/.editorconfig
index cdac2e8e..09a8ffd9 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -16,6 +16,9 @@ trim_trailing_whitespace = true
 [src/overlay*{cpp,h}]
 indent_size = 3
 
+[src/mesa/**]
+indent_size = 3
+
 [meson.build]
 indent_size = 2