diff --git a/src/rustllvm/.editorconfig b/src/rustllvm/.editorconfig
new file mode 100644
index 0000000000000..865cd45f708fb
--- /dev/null
+++ b/src/rustllvm/.editorconfig
@@ -0,0 +1,6 @@
+[*.{h,cpp}]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_style = space
+indent_size = 2