diff --git a/README.md b/README.md
index 2f0a116..657322b 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,9 @@ Usage
 
 ```
 GOARCH=arm ./gokr-packer \
-		-kernel_package=github.com/oliverpool/kernel-rpi-os-32/dist \
-		-firmware_package=github.com/oliverpool/firmware-rpi/dist \
-		github.com/gokrazy/hello
+    -kernel_package=github.com/oliverpool/kernel-rpi-os-32/dist \
+    -firmware_package=github.com/oliverpool/firmware-rpi/dist \
+    github.com/gokrazy/hello
 ```
 
 ## Manual compilation