diff --git a/desmume/src/.editorconfig b/desmume/src/.editorconfig
new file mode 100644
index 000000000..b39b7e548
--- /dev/null
+++ b/desmume/src/.editorconfig
@@ -0,0 +1,4 @@
+root = true
+
+[*]
+indent_style = tab
diff --git a/desmume/src/libretro-common/.editorconfig b/desmume/src/libretro-common/.editorconfig
new file mode 100644
index 000000000..9225c67a3
--- /dev/null
+++ b/desmume/src/libretro-common/.editorconfig
@@ -0,0 +1,5 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 3