diff --git a/src/util/.editorconfig b/src/util/.editorconfig
new file mode 100644
index 00000000000..766741d7e76
--- /dev/null
+++ b/src/util/.editorconfig
@@ -0,0 +1,5 @@
+[rb_tree.c]
+indent_size = 4
+
+[tests/rb_tree_test.cpp]
+indent_size = 4