diff --git a/Makefile b/Makefile
index f24d43b..8c04a51 100644
--- a/Makefile
+++ b/Makefile
@@ -1,13 +1,13 @@
 script.js: sr9.wasm
-tsc script.ts
-mv script.js _site/script.js
-mv sr9.wasm _site/sr9.wasm
+	tsc script.ts
+	mv script.js _site/script.js
+	mv sr9.wasm _site/sr9.wasm
 
 sr9.wasm:
-touch sr9.wasm
+	touch sr9.wasm
 
 index.html:
-cp src/index.html _site/index.html
+	cp src/index.html _site/index.html
 
 om.html:
-cp src/om.html _site/om.html
+	cp src/om.html _site/om.html